Raunchy comedy, or wholesome family fun? That's the big choice this weekend, as Bad Teacher and Cars 2 square off at the box office as the only two features opening in wide release.

Bad Teacher stars Cameron Diaz as a Chicago-area teacher with a drinking, drug and cursing problem. The movie co-stars Justin Timberlake and Jason Segel. Cars 2, the sequel to the hugely popular 2006 Pixar movie Cars, brings back racer Lightning McQueen (Owen Wilson) and tow truck Mater (Larry the Cable Guy), who leave Radiator Springs for a world adventure, traveling to Japan, Italy and England as McQueen competes in the first World Grand Prix.

Among the movies premiering today in limited release is Conan O'Brien Can't Stop, a documentary about the comedian and talk-show host's comedy tour of the U.S. and Canada after leaving NBC's Tonight Show.

See our mashup of all three trailers above.