Tom suggested a new thread for this so here we go.
This is the movie frame game, with a twist. Post the frame from 20 minute 20 seconds into the film. If people are stumped, post the frame 40 minutes 40 seconds in. Finally, 60:60. If nobody gets it after that, you may reveal the film's identity. The winner gets to post the next film frame, so only one film at a time.
Edit: here is a list of films already submitted: http://www.quartertothree.com/game-talk/showpost.php?p=2979099&postcount=3467
Thanks to everyone who helped compile the list!
I'll start with this popular and well known film:
20:20 guess the film