As we learned yesterday, Tom Cruise’s hysterical Tropic Thunder scene-stealer, Les Grossman, is headed to the big screen — in his own movie. (But, really, would Grossman have it any other way?) The announcement of the film is part of a pretty hot trend in Hollywood: secondary characters that nab spin-off movies of their own. Steve Carell’s title role in Evan Almighty, for instance, began life as Jim Carrey’s rival newscaster in Bruce Almighty. And Russell Brand’s new movie, Get Him to the Greek, brings back rock star Aldous Snow from Forgetting Sarah Marshall. (Is Diddy next?) All of which got us thinking: What other second-tier/scene-stealing characters deserve a shot at the top of the credits in his or her own movie? Any suggestions, PopWatchers?