You know summer's over when the biggest movie opening is Hamlet 2, a Sundance hit about a high school teacher's struggle to save the school's drama program by writing, directing, producing and starring in a zany time-travel musical. (Okay, there's also Death Race, which the Times calls "a supercharged junkyard apocalypse powered by an unabashed relish for brutal comeuppance and a flair for delirious vehicular mayhem.") British funnyman Steve Coogan – you know, the......