Tom Cruise plays what amounts to a comic version of Mission: Impossible’s Ethan Hunt in Knight and Day, a slick and shallow film that still manages to entertain. Cruise plays Roy Miller, a mysterious man and possible rogue agent being pursued by the FBI. He bumps into the beautiful June Havens (Cameron Diaz) on an airplane, and the two wind up on a wild and wacky adventure. Cruise is a lot of fun; he delivers some nice stunts and effortless comedy. As for Diaz, she’s responsible for the film’s weaker moments; she’s far from terrible, but isn’t half as good as Cruise. Director James Mangold provides some decent action scenes and gets the goods out of Cruise, who is clearly enjoying the chance to let loose.