Watch more than 200 people freeze on cue in New York City's Grand Central Station and experience something akin to what I experience when I'm served regular coffee instead of decaf: I'm moving and everyone else is standing still. My favorite part of this film is the level of committment the "frozen" people demonstrate, some of them balancing on a toe or arranged in heated conversation over maps. This group (Improv Everywhere) has also staged such "missions" as the No Pants Subway Ride, the Best Buy uniform prank, and the U2 Rooftop Hoax. Check out their site to see images and video of their work.