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A 2009 comedy science-fiction film about time-travel starring Creator/ChrisODowd & Creator/AnnaFaris and made by the BBC.

Ray, a science-fiction [[InsistentTerminology "imagineer"]], has just been fired from his job as an entertainer at a theme park. He goes to their local pub that night with his friends, fellow nerd Toby, and Pete who is less than enthused about the concept of Sci-Fi. Ray happens to run into a lady named Cassie, who claims to be a time-traveller from the future. Pete tops this story, however, when he returns from the bathroom having seen the entire pub massacred at some point in the near future. From this point, the three friends have a mighty misadventure going in and out of the time-rift gents, landing them 30 minutes in the past, then in peril, then substantially less peril, then life-threatening peril.

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!!This film provides examples of:

* AnachronismStew: The trio dressed like hobos in the distant future, also discussed by Ray and Cassie in regards to the mechanics of Time Travel itself.
* BadFuture: The year 2094 seems to be this, complete with ash covered ruined buildings and giant Ants, though it is never mentioned what caused it. As the trio was reading the expiration date off of a bag of possibly-expired crisps the year may be even later, depending on advances in preservatives in the 84 years in between.
** Pete implies that the far-future has terrible ''things'' in it that only come out at night. He admits it might have been the past, but if it was, then our fossil record "is far from complete".
* BaitAndSwitch: When in the far future, the trio hear a unnerving noise that sounds like giant insects approaching. They flee, only for the noise to be from a man pushing a rusty shopping trolley... and then he gets his head [[OffWithHisHead bitten off]] by a giant ant.
* BigDamnHeroes: Ray showing up with his big gun to confront Millie during the film's climax. it doesn't work out as planned.
* BigNo: Ray when trying to stop Millie from shooting Toby.
* BriefAccentImitation: In the opening scene, Ray does a decent American accent (albeit with a bit of OohMeAccentsSlipping).
* BunnyEarsLawyer: Cassie, who despite being a Time Agent, needs Ray to explain [[TimeyWimeyBall certain aspects]] of time travel to her.
** Subverted with Ray, whose tendency to get too in-character as a SpaceMarine gets him fired from his job.
* ButterflyOfDoom: Mentioned by Ray several times, though never actually seems to happen [[spoiler: until the end, where changing history seems to have created an AlternateUniverse]].
* ChekhovsGun: Ray's Mark IV Carbomite Assault Staff which is introduced in the opening scene and gets used by Ray against Millie in the climax.
* ChekhovsHobby: Ray's knowledge about his [[ChekhovsGun machine gun]] scares Millie enough for her to let go of Toby.
* CoolGate: Cassie's time portal in the last scene.
* DramaticGunCock: Ray does this with his Mark IV Carbomite Assault Staff when having Millie at gun point.
* ExcessiveSteamSyndrome: Invoked during Ray's opening star ship simulation.
* ExpositoryHairstyleChange: Cassie has a different hairstyle every time she and Ray meet. This is because months have passed for her.
* FutureLoser: Played straight with Pete, who becomes a nervous wreck after traveling randomly through time for two months.
* {{Futureshadowing}}: Used several times, firstly when Pete briefly sees the massacred pub in the future, but we don't realize it's because [[spoiler: a Time Traveller was trying to kill Ray, Pete and Toby]] until the very end where such a thing happens, nor do we see why they become famous in the future. A very subtle one is also used when the Trio first travel in time, a disguised Ray from further still in the future is seen standing next to Present Ray for a moment, but it's not revealed until later.
* HairFlip: Cassie when taking off her helmet in the last scene.
* HandshakeRefusal: Ray's boss fires him and refuses to shake hands.
* HitlersTimeTravelExemptionAct: Both discussed and played straight, in that killing famous people from history is a 'Time Crime'.
** Leading to the amusing revelation that Paris Hilton either wasn't remembered in the future, or at some point was wiped from history and [[TakeThat no-one noticed, cared, or wanted]] to change things back.
* InsistentTerminology: "Science fiction", not "sci-fi". Also, "imagineer" instead of "nerd".
* ItWasHereISwear: When Pete want to show his friends the massacre he witnessed at the pub, it's gone.
* MacGuffin: Toby's paper.
* MyOwnGrampa: Referenced by name by Ray.
-->Don't fuck anyone! Or you might end up being your own Grandfather.
* NoodleIncident: When future Pete with his TimePassageBeard meets his friends, they ask what he has been through, but he doesn't want to talk about it. Ever again! We later learn that he spent [[TheSlowPath two months]] in the forest, and has been hopping around history long enough to know that "they hunt in packs".
* NotWhatItLooksLike: The old man being shocked by the threesome conga line in the gents room.
* OurTimeMachineIsDifferent: The Time Travelers have their machines built into their very bones, allowing them to Time Travel at will.
* OutOfTimeOutOfMind: Averted. Pete disappears for what looks like two seconds to Ray, Toby and the viewer, but to him it was at least two months, and he's lost his mind in the meantime. For the rest of the movie he's a little bit [[SanitySlippage off]].
* PantsFree: When Ray goes to talk to his boss, we see that he wore sweatpans to his funky space suit top.
* RevealShot: When Ray's finished his powerful RousingSpeech we get a look at the audience which turns out to be a bunch of first graders.
* RousingSpeech: Ray gives one to the crowd of kids in the opening scene.
* SamusIsAGirl: Cassie in the final scene looks like a man when exiting the portal in her shiny armor and face-concealing helmet.
* SarcasmBlind: Toby, upon Ray's sarcastic question if he would like to stock up on the buffet at the look-alike-party.
* SearchingTheStalls: Plot point, as Ray misses to search the last stall where the gang from another timeline hides. Just imagine what [[TimeCrash could have happened]] if [[NeverTheSelvesShallMeet they met]].
* ShoutOut: Many many TimeTravelTropes are mentioned.
** Several works of fiction are also mentioned such as ''Series/DoctorWho'', ''ComicStrip/FlashGordon'', ''Film/{{Aliens}}'', among possibly others.
** Some sight gags referencing TimeTravel movies i.e. Pete lifting his shades to see his watch as in the ''Film/BackToTheFuture1'' poster. Also ''Film/PlanetOfTheApes1968''. Not to mention the movie posters when the trio pass the movie theater with the production names of movies like ''Film/BackToTheFuture1'' and ''Film/ETTheExtraTerrestrial''.
** Toby's scarf bears more than a passing resemblance to that worn by Tom Baker's [[Series/DoctorWho Doctor]].
** The White Horse pub has the same name as a real world pub where British SF writers--including Creator/ArthurCClarke (who based his ''Tales from the White Hart'' on it), Creator/JohnWyndham, and Creator/JohnChristopher--and fans used to have a weekly get-together.
* TheSlowPath: After getting stuck half an hour in the past, the Trio opt to get back to their own time by way of hiding in a cupboard for half an hour.
** Future Pete spent two month in the forest in between visits to the bathroom.
* TheStinger: First the end credits are being interrupted by Ray, Pete and a double of Pete. After the credits are fully finished, another 20 second scene features Toby being chased by an animalistic double. As Ray and Pete look on, the double of Pete says "this is all getting a little bit too complicated."
* TerminatorTwosome: Cassie and [[spoiler:Millie]].
* TimePassageBeard: Future Pete sports one, after having spent two month in the wilderness.
* TimePolice: Cassie belongs to one of these organizations.
* TimeTravel: Pretty self explanatory from the title.
* TimeyWimeyBall: Averted for most of the movie, all the Trio's time traveling antics don't change time, for example [[spoiler: a Future Ray is seen in the red hoodie before we see him put it on and travel back]], until the ending where [[spoiler: destroying the note that makes the Trio famous reverses time and creates an AlternateUniverse]].
* TurnInYourBadge: The treatment Ray gets from his boss early on.
* TheUnreveal: The audience never learns what the great idea that made them famous was.
* WeaponStomp: Millie steps on the mysterious note that Toby is trying to reach in the film's climax.
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