Here's an excellent video from Eran Amir that features 500 people holding 1500 photographs in a mere 110 second clip.

What's interesting about this film is that it's a stop-motion video within a stop-motion video. It's a dizzying effect that you should avoid watching while under the influence, unless you enjoying tossing your cookies all over your computer. [YouTube via Laughing Squid and ZeFrank]