Colin Farrell is Cheating on Letterman: Late Last Night

Colin Farrell appeared on The Late Show to talk about his trip to the Grand Canyon.

Ryan Reynolds showed up on Late Night with Jimmy Fallon to share some dirt on his The Change-Up costar Jason Bateman (as revenge for the night before).

Jason Bateman himself visited Conan to discuss the long-awaited Arrested Development movie.

Finally, Jeremy Piven spoke to Jimmy Kimmel about his poor relationship with technology.