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"Today, I'm going to show you a story. Let's all tune in together. A long time ago, the soul of our planet was sick. People had become isolated...warlike. Our world was frightened. It was dying. But a great scientist was trying to save us. He had tried many times, and knew he could only try once more. This was the last Mimzy."
— Teacher in Meadow
A 2007 film centered around Noah Wilder, a video game-loving, somewhat irritable young man who believes that "school sucks, life sucks, and [he] suck[s]", and his sensitive and precocious younger sister Emma Wilder. While on vacation with their parents over spring break, Noah and Emma find a box filled with strange objects that are incomprehensible to them except for a stuffed rabbit named Mimzy that can communicate with Emma. Sensing that there is something odd about their find, they keep it a secret from their parents, particularly after Noah tries to show a translucent rock filled with constantly shifting green triangles to his mother and it appears to her to be a normal rock. Emma becomes emotionally attached to Mimzy as the mysterious objects begin to give the siblings psychic abilities and increase their mental capacities to genius level. Noah's science teacher Larry and his mystic wife Naomi get involved when Larry notices that Noah has been drawing mandalas, and the situation becomes serious when Noah accidentally assembles the objects into a generator that causes a blackout in the entire city of Seattle. The FBI discovers the source of the surge and the Wilder family members are arrested; meanwhile, Emma has elucidated that Mimzy and the other objects were sent from the future, and it is up to her and Noah to figure out how to send Mimzy back to her own time and save humanity's future.
The film is inspired by the short story "Mimsy Were the Borogroves" by Henry Kuttner
and C. L. Moore.
This film provides examples of:
- Adults Are Useless: "I showed the green glass thing to Mom. She thought it was a paperweight." Indeed, by the end of the film, the adults—except for Larry and Naomi—are little more than hindrances to Noah and Emma. They thought they were helping out by throwing away the objects and Mimzy because it made Emma have a seizure but in the end, hindrance.
- All Myths Are True: Particularly Tibetan ones about mandalas.
- Applied Phlebotinum: Noah and Emma use the generator to build a bridge across spacetime to send Mimzy back to the future.
- Artistic License - Biology: There is no DNA in tears.
- Strands of DNA do not float around freely in tears, and tears are mostly water and salt, but a few cells are probable, especially after said tears have rolled down a person's face. Quickly locating and extracting DNA from those cells is only impossible with current biotechnology.
- Artistic License - Law: SWAT teams storm the house. They corral everyone in the living room. Then the little girl in this family you were told to contain with extreme prejudice asks to get something out of her room? Of course she can go up unsupervised.
- Aww, Look! They Really Do Love Each Other: Noah is abrasive to Emma at first, but by the end of the movie they are getting along swimmingly, and Noah ends up saving Emma's life.
- Bad Bad Acting: The child actors who play Noah and Emma are excellent, but the parents' acting is painful at times.
- Big "NO!": Emma's reaction when her mom tries to make her throw away Mimzy. Thankfully, Noah rescues Mimzy and the toys from the dumpster later.
- Brick Joke: Larry White's dream-visions of winning lottery numbers and mandalas he sees one in the end.
- By the Eyes of the Blind: Emma is the only one who can understand Mimzy.
- Cheerful Child: Emma, though not obnoxiously so.
- The Chosen One:
- Emma is the one with the task she needs Noah in order to carry out.
- It's revealed that there were other Chosen Ones that received the Mimzies in their respective time periods, but they didn't have Engineers to build the necessary bridge to get Mimzy back to the future.
- Companion Cube: When Emma gets attached to Mimzy, she starts carrying her everywhere. Emma even becomes very distressed when separated from Mimzy for any length of time.
- Crapsack World: The future from which Mimzy comes. Poison, war, destruction, you name it. It looked like Mordor.
- Everything's Better with Plushies: Mimzy, of course. There's a reason the scientist sent back a stuffed animal.
- Hair-Raising Hare: Mimzy near the end because of the message that she brings.
- Hey, It's That Guy!: Dwight from The Office is the science teacher Larry White.
- Humans Are Psychic in the Future: Well, not the Crapsack World future from which Mimzy was sent, but an even later future in which a teacher tells the story of Emma and Noah to an assembled class. This is justified because Emma gains psychic powers from the objects from the future and then gives some of her DNA to Mimzy. Said DNA was then used to "cure" the sick people of the future, and presumably was responsible for their new abilities.
- Invisible to Adults: The objects aren't actually invisible to adults, but Mimzy appears to be a normal stuffed animal at first glance and the awesome shifting green glass triangle thing looks like...a paperweight.
- The Last Title: The title.
- The Men in Black: The FBI agents who storm the Wilder house.
- Ms. Vice Girl: Naomi is incredibly eager with her dabbling in vaguely eastern mysticism... mainly because her husband Larry had a dream several years ago that perfectly predicted a winning set of lottery numbers, and she's been trying to strike it lucky again.
- Multiple Head Case: Noah's science teacher brings a two-headed snake named Charlie to class.
- Product Placement: Actually fits well into a very clever moment. When the bunny is examined closely it is discovered to be made of microprocessors — Intel microprocessors. This is obviously met with much shock by the lab as Intel can't do anything like this... yet.
- Ridiculously Cute Critter: Mimzy is a stuffed bunny.
- Running Gag: "Did you see numbers?" "No."
- Set Right What Once Went Wrong: This is the intention of the scientist who created Mimzy.
- Shout-Out: To Lewis Carroll's Alice Through the Looking Glass, particularly the poem "Jabberwocky".
- Time Travel: Mimzy is from the future. The bulk of the plot is sending her back.
- The Unintelligible: Mimzy. The audience can hear her make a humming sound, but only Emma can actually understand her.
- We Will All Fly in the Future: After humanity is brought back from the brink of extinction and the future looks bright, children float through the air to assemble on a grassy knoll for their school lessons, then floats away like dandelion seeds.
- Weirdness Censor: What Mrs. Wilder tries to invoke (after Noah and Emma get Psychic Powers, she spends half the movie plugging her ears and going "la-la-la, my kids aren't magic, the paranormal doesn't exist").