This film is the latest comedy co-produced by director David Dokin and "The Hangover" screenwriter Jon Lucas. The entire film was shot in just 62 days, and the British title is "Meet the Kids". Dave (Jason Bateman) is a successful family man with lovely children and a charming wife (Leslie Mann), who works hard every day and takes care of the family. The handsome Mitch (Ryan Reynolds) is a playboy who hangs out with girls every night. The two gradually get tired of their current lives and want to try each other's lives. The two said to the "goddess" in the fountain, "I want your life." Unexpectedly, the wish came true the next day. Dave, who is hiding in Mitch, can date the sexy Sabrina (Olivia Wilde), while Mitch, who is hiding in Dave's body, can only witness his beautiful wife unable to do anything...