Film / Innerspace
Tuck: Jack, excuse me, but I want you to factor this into your thinking, alright? ... If you don't help me, you're going to wind up with this miniaturized submersible pod floating around your insides with this teeny tiny human skeleton at the helm.
Jack: Ugh.
Tuck: Not a pretty thought!

A 1987 sci-fi comedy starring Dennis Quaid, Martin Short and Meg Ryan. Rather surprisingly not the huge hit it was anticipated to become at the time, it has since attained to cult classic status as one of the quintessential 80's popcorn flicks.

Quaid plays Tuck Pendleton, a Navy pilot assigned to pilot an experimental submersible that is to be shrunk down and injected into a rabbit. Unfortunately, bad guys after the shrinking technology break into the lab, and one of the scientists, escaping with the syringe containing the shrunken sub with Pendleton in it, is forced to inject Pendleton into unwitting Safeway clerk Jack Putter.

Then things get weird. (Well, weirder.)

The film was directed by Joe Dante, produced by Steven Spielberg and features special effects by Rob Bottin, which might help give you an idea of what you're in for.

Not to be confused with cult classic PC game Operation: Inner Space

Tropes used in this film:

  • Action Survivor: Jack, to a "T."
  • Adrenaline Makeover: Jack, again. A rare male example, and in the most literal sense possible. Tuck literally stimulates Jack's adrenal gland!
  • Almost Out of Oxygen: Tuck has a very limited supply of oxygen, so Jack must get him (and the chips) back to the lab before it runs out. A Race Against the Clock begins.
  • And the Adventure Continues: At the end of the film, a newly-empowered Jack sees the Cowboy disguised as Tuck and Lydia's limo driver (with Scrimshaw and Dr. Canker hidden in the trunk, but Jack doesn't know it) and chases after them.
  • Applied Phlebotinum: The whole plot revolves around retrieving the one-of-a-kind miniaturization/re-enlargement chips. Both projects have entire, working installations devoted to the miniaturization process, but for some reason even the villainous rivals need exactly the same chips as the government-funded laboratory.
  • Asshole Victim: Mr. Igoe.
  • Awesome, but Impractical: Using robot arms to place the chips. Lampshaded when an impatient scientist grabs the chip from the robot and puts it in manually (he do gets a jolt because of it, though).
  • Big Bad: Victor Scrimshaw.
  • Bond One-Liner: "Congratulations, Jack. You just digested the bad guy." Jack then burps.
  • Brick Joke: "Who's the Cowboy?!" "That's, er, classified."
  • Character Development: Jack grows from a nerdy, cowardly hypochondriac to a man with a zest for adventure over the course of the movie.
  • Chase Scene: Involving Tuck's Mustang chasing the refrigerated truck where Jack was held captive.
  • Chekhov's Gun:
    • The Spinners' song "Cupid".
    • Jack's allergy to hairspray.
  • Computer Voice: The computer aboard the...
  • Cool Ship: Tuck's minisub, reminiscent of the Discovery's space pods, and armed with an amazing array of gadgets and sensors. It even recognized Jack's human physiology immediately and auto-mapped it despite having been programmed to go into a rabbit.
  • Crouching Moron, Hidden Badass: Jack. Well, actually Tuck helped him a little...
  • Dare to Be Badass: Tuck gives a minor Rousing Speech to Jack when the latter is trapped in a refrigerator truck by Scrimshaw and Mr. Igoe. It works a little too well, or, at least, a little too early — the truck is still moving!
  • Decoy Protagonist: Ozzie. He has an elaborate chase scene with the bad guys but eventually gets killed, right after pulling a silent I'm Dying, Please Take My MacGuffin to the real hero Jack.
  • Depraved Bisexual: The Cowboy seemed oddly... excited when Jack aggressively bursts into his hotel room while he's in his underwear. He even excitedly exclaims "Big Jack!"
  • The Dragon: Mr Igoe.
  • Dreaming of Things to Come: Jack's dream about the old lady with a (cigarette lighter) gun and the high prices of her groceries.
  • Drowning My Sorrows: Tuck, a washed-out Naval Aviator, was already an alcoholic before Lydia dumped him, then he got worse. Although he claims to have sobered up before the miniaturization project, it's obvious to his coworkers that he's off the wagon (and also to the audience, judging by all the bottles he keeps stashed away in odd places in his apartment).
  • Everyone Calls Him "Barkeep": The Cowboy, Badass master of industrial espionage, counterfeit, smuggling, and snakeskin clothing.
  • Exact Time to Failure: Tuck has a very limited supply of oxygen, so Jack must get him (and the chips) back to the lab before it runs out.
  • Explosive Decompression: What would happen to the minisub if the cockpit were breached, which is why Tuck can't just go to the lungs to resupply his oxygen tanks.
  • Fainting: Scrimshaw's blond mook keeps passing out amidst too much excitement.
  • Fanservice: For the ladies and others, a long glimpse at Dennis Quaid's bare ass.
  • "Fantastic Voyage" Plot: Self-explanatory. The effects are still awesome enough to be a deep well of Squick for some viewers.
  • For Science!: What the original government project was intended for. The rival lab, on the other hand, has more lucrative goals in mind.
  • Get A Hold Of Yourself Man: Jack gets slapped as he is having a psychotic breakdown behind the cash register.
  • Headphones Equal Isolation: Mr. Igoe puts on his Walkman as he drives the truck Jack is imprisoned in. Naturally, he never even realizes he's involved in a Chase Scene.
  • Hearing Voices: Justified. Tuck communicates with his host via an electronic linkup in Jack's ear, and naturally Jack initially thinks he is insane when he hears Tuck's voice inside his head.
  • Heel–Face Turn: Tuck's "friend" and government money man Pete Blanchard is quite the ruthless S.O.B. early in the film, willing to sacrifice Tuck's life to ensure the survival of Dr. Niles' project, but then randomly at the end turns up to personally chauffeur Jack back to Niles' lab to save Tuck.
  • Heroic Sacrifice: Scientist Ozzie Wexler dies via a gunshot to the back whilst injecting Tuck into Jack.
  • Hollywood Acid: Jack's stomach — especially what it does to Mr. Igoe in the final battle. (Thanks a whole lot, Rob Bottin.)
  • Hot Scientist: Margret Canker, and how.
  • Hot Scoop: Lydia.
  • I'm Dying, Please Take My MacGuffin: After being shot, Ozzie uses the last of his strength to inject nearby passer-by Jack with the syringe containing the miniaturized submersible.
  • Ill Boy: Jack believes he is one of this. As it happens, he's the ultimate hypochondriac, to the point he might really give himself a heart-attack by stressing out over having a heart-attack.
  • Implacable Man: Mr. Igoe redefines the trope.
  • Improbably Cool Car: Tuck's pristine red Mustang convertible.
  • Intrepid Reporter: Lydia, Tuck's girlfriend.
  • Jerk with a Heart of Gold: Tuck. Pompous and alcoholic but if you need him he can help you and give you good advices.
  • Latex Perfection: Thanks to the little guy inside you who can stimulate your facial nerves just so. (Real reason: because every Joe Dante movie needs a Transformation Sequence, that's why.)
  • Locked in a Freezer: Jack is trapped in a meat truck at freezing temperature.
  • Love Triangle: More or less. Jack is attracted to Lydia who still loves Tuck but has some minor affection for Jack, as evidenced by still wanting to kiss Jack after Jack asks Tuck to shut down and the lingering glance at Jack before she gets in the limo at her wedding.
  • Mad Scientist:
  • Magic Feather: Jack, when he thinks Tuck is still inside him and feeding him doses of adrenaline, rescues Lydia bravely.
  • May–December Romance: Implied with Wendy and Dr. Greenbush after Jack ditches her.
  • Miniature Senior Citizens: The villain couple getting miniaturized.
  • Misapplied Phlebotinum: The miniaturization process is described as "breaking an object down to its component particles to 'compile' a microscopic version of the object". The first part would be called "destructive uploading", and is actually being seriously researched both for machines and people (there are ethical concerns for people, as even if you can perfectly reconstruct the human, it's still essentially murder by perfect body disposal, but it's a secret government project doing it meaning Screw the Rules, I Make Them!). But if they can "compile" Tuck as a human the size of an amoeba while retaining his intelligence, then they have a computer chip that makes the NSA's best stuff as of today look like an abacus. You'd need that kind of processing power to upload stuff, but that's civilization-changing technology. And they're using it, with No Plans, No Prototype, No Backup, on a rabbit, as a precursor to fitting people with sensory-jacking surveillance equipment. Reed Richards Is Useless.
  • Multitasked Conversation: Confusing talk in the hospital, when Tuck (inside Jack) tries to talk to Jack who believes some patients are talking to him.
  • Mundane Made Awesome: Thanks to Joe Dante, DP Andrew Lazlo, and the late Jerry Goldsmith, a glass full of ice (which Tuck will end up drinking from) becomes a mysterious background for the film's title card.
  • My Secret Pregnancy: Lydia, who keeps it from Tuck. The thing is, when he found out (in the weirdest way possible, mind you), he was crying tears of joy. Referenced again at the end when Tuck's first words to Lydia after being returned to normal were, "Why didn't you tell me?"
  • Names to Run Away from Really Fast: Again, Dr. Canker.
  • No Ending: "Jack Putter to the rescue!"
  • No Plans, No Prototype, No Backup: The chips. Lampshaded. They're one-of-a-kind, nobody can replicate them or their technology (at least not before Tuck's oxygen runs out), and nobody made backups in case they were lost or damaged.
  • Noodle Incident: Something must have happened between Ozzie Wexler and Dr. Canker.
  • Oh Crap!: Tuck can be heard saying "Uh oh" when Jack is caught posing as the Cowboy.
  • Only in It for the Money: It's Scrimshaw's sole motivation in all this.
  • Pair the Spares: Wendy and Dr Greenbush share a longing glance at the end.
  • Pint-Sized Powerhouse: Scrimshaw and Dr. Canker, after getting shrunk down to midget size.
  • Poke the Poodle: Igoe pops a balloon because he's EVIL!
  • Pre-Mortem One-Liner:
    Tuck: Okay, pal... here's how I spell 'relief'!"
  • Race Against the Clock: To rescue Tuck, who is Almost Out of Oxygen.
  • Reasonable Authority Figure: Project leader Dr. David Niles is rather likable and understanding for a gub'mint scientist.
  • Right Man in the Wrong Place: Jack, becoming the Unlikely Hero of the story by being at the wrong place at the wrong time.
  • Running Gag: The Cowboy - he's classified.
  • Shout-Out:
    • Alice in Wonderland. Though why anyone would set up the miniaturization/re-enlargement process selection screen that way is anyone's guess.
    • 2001: A Space Odyssey, in the aforementioned design of the pod. And the... unusual way Tuck meets his child for the first time.
    • There's plenty of Looney Tunes references, including a cameo by Chuck Jones in the grocery store scene.
    • At one point, Jack attempts to comfort himself by turning on Scrabble.
  • Something Only They Would Say: The way Jack convinces Lydia that Tuck really is miniaturized.
    Jack: (repeating Tuck) "I don't blame you for walking out on me that morning. But it was my heart that was broken, not my toe."
  • Soul-Sucking Retail Job: Jack's position in the beginning. He quits after deciding he prefers a life of adventure and intrigue.
  • Staring Kid: There's one when Mr. Igoe shoots Ozzie with his gun hand.
  • Stun Guns: Lydia tries to use one on Mr. Igoe. It backfires horribly.
  • Swiss Army Appendage: The assassin Mr. Igoe is missing his right hand, and has it replaced with a system of different swappable false hands, ranging from an ordinary cosmetic hand, to one with a pointing finger that is actually a gun, to a drill-hand.
  • Techno Babble: The miniaturization process in the film is depicted as breaking up a macroscale object into its component molecules to "compile" a microscopic version of that object. The loss of so much of the objects mass is presumably the reason why Niles described the re-enlargement process as "tricky" and why two chips are used - one on the pod, one on the miniaturizer - as they can serve as a guide for exactly how to rebuild the object. So they're using a variation of Encom's scanning laser.
  • There Are No Police: When Ozzie is running from Igoe in the mall, he is not looking for a security guard or yelling for help or going into a store and telling them to call 911. This would be an obvious Real Life course of action to take - however the trope is necessary to get Tuck injected into Jack.
  • ˇThree Amigos!: Tuck, Jack, and Lydia, in a sense. Fitting that Martin Short is one of them.
  • To Absent Friends: "We're going to make a toast to Ozzie, who saved my ass by injecting me into yours."
  • Took a Level in Badass: Jack, oh so amazingly. So much so, that he rejects his old life at the end of the film in favor of rushing to help Tuck on his honeymoon against (presumably) "The Cowboy".
  • Traveling at the Speed of Plot: Despite 60,000 miles of blood vessels in the human body, forming a huge maze that goes through the heart every minute, Tuck manages to make his way around a human body pretty quick - ear, eye, abdomen, stomach, mouth. Zip-zip-zip. Truth in Television in that human blood makes that trip every minute. Tuck's just along for the ride.
  • Unlikely Hero: Jack, being the Right Man in the Wrong Place.
  • Vanity License Plate: Igoe's BMW ("SNAPON") and Scrimshaw's Rolls-Royce ("SUB-ZRO").
  • The Voice: Tuck is this from Jack's perspective.
  • The Voiceless: Igoe never says a word in the entire film. Unless you count, "Arrrrrggggh!"
  • What Happened to the Mouse?:
    • By the end of the movie, all of the sensors Tuck implanted on Jack's body (and Mr. Igoe's damaged pod and Mr. Igoe's remains) are still in there. Doesn't seem to bother anyone.
    • What happened to the scientists who were in the miniaturization chamber with Scrimshaw and Kanker?
  • When Things Spin, Science Happens: The miniaturization process at the government lab spins Tuck's minisub at absurdly high rates before breaking it down and shrinking it. It's a wonder Tuck's stomach didn't object.