I saw this short film and was blown away by the insane detail and graphics; I actually didn't even know if it was even real or not at first. It took a year to make this five and a half minute animation and it is evident in its intense attention to detail and its awesome sound design. It's a little creepy but still super cool! (Aparently it premiered at SIGGRAPH last year)
Click the title to go to the website and see close up screenshots and sketches.