Wanted: Great SF stories for a SF short film

Rusty at BestScienceFictionStories.com is talking with a film maker on which science fiction stories would make for a great SF short film. The catch: the film will only be 15 minutes long. Rusty is looking for suggestions from people, so pop over to the discussion and voice your opinion.

One story I believe would work well at that length is "The Nine Billion Names of God" by Arthur C. Clarke. A number of the Futures short SF stories published by Nature might also fit.