Simply superb animation.
Really twisted!
Beautiful story, and I really, really, really want a modeling program like that.
What can I say? I like Sci Fi. 
Anyway, what are your favorite short films?
Begone Dull Care, arguably the greatest film ever made that didn’t use a camera.
One Week, my favorite of all of Buster Keaton’s shorts.
Guy Maddin’s magnificent The Heart of the World.
Last Request with Michael Chiklis. Sorry, but I couldn’t find it on youtube.
It’s difficult thinking of these because most of them I’ve seen in short film or animated film festivals. Off hand -
The Red Balloon
The Mysterious Geographic Adventures Of Jasper Morello
there’s one where a girl with a camera travels through the city and in post editing gives a thumbs up or thumbs down to the various people she films representing the thoughts we have throughout the day about whether we find random strangers doable or not
I liked most of the films in a gay sci-fi short film night I attended, including one about a man stranded on a planet with a masturbating gay robot, and one in which the protagonist makes love to his clone
there’s a lot of praise for the recent “Sita Sings the Blues” but I haven’t seen it yet, though I did download and enjoy the original score
Bambi vs Godzilla
I really enjoyed MTV’s Liquid Television, but don’t remember much specifically other than Aeon Flux
two student films that you wouldn’t have heard of unless you attended SUNY Stony Brook: A Spooky Day (a silent film about a student vampire) and Lesbian Chicken Vampires from Outer Space (self evident)
Most of the films from the The Animation Show festival and DVDs but especially:
Billy’s Balloon
Ward 13
Fallen Art
The Mysterious Explorations of Jasper Morello
I first saw Don Hertzfeldt’s Rejected at a Spike & Mike Twisted Animation Festival; I don’t think I’ve ever laughed harder.
The Accountant
A dark comedy, written by and featuring Ray McKinnon
George Lucas in Love. Parodies both Shakespeare in Love and the whole Star Wars phenomenom.
My short film “Who the F#@K is Chuck Norris.”
Gerald McBoing Boing’s Symphony
Borge Ring w/Anna and Bella (Warning: Some animated nudity in this one.)
The Teddy Bear’s Picnic (not so much a short film but still period-specific bliss).
Frankenweenie - Frankenweenie (2012) - IMDb
And,
Pizza Hut “Right Field” ad (yes it’s a commercial but it’s a whole little movie too) - - YouTube
I don’t mean to hijack, but I have to.
The Cat Came Back video (which I LOVE) I remember at the same time as a lot of short films from Canada I think.
There was one that seemed like it was a conversation between two little sisters having one of those little kid conversations–which by the way are heelarious to listen to.
At one point, one of them (as part of the convo) starts yelling "CockaDoodie!!!
Then it was animated, with the things they are just yammering about happening.
Imagine how hard “Cockadoodie” is to google?
I don’t want you nice people to go look at those websites.
<wink> the first few aren’t that bad, but it gets worse.
It’s like “The Tape Store” skit on early SNL. I finally found someone else who’d seen it.
Be the person that knows Cockadoodie–but not the gross one.
Sorry for the hijack, but it IS a short film.
heart!
La Jetée (1962, France, dir. Chris Marker)
Hardware Wars (1978, U.S., dir. Ernie Fosselius)
The Wizard of Speed and Time (the 3-minute version) (1979, U.S., dir. Mike Jittlov)
One that jumped into my mind: “Crac!”
The first one that hopped into my mind on seeing this thread: Validation