This film is the latest comedy co-produced by director David Dawkins and "Hangover" screenwriter Jon Lucas. The shooting cycle of the whole film took only 62 days, and the title in the UK is "meet the Children". Dave (Jason Bateman Jason Bateman) is a successful family man with lovely children and a charming wife (Leslie Mann Leslie Mann) who immerses himself in his work and takes care of his family every day. The handsome Mitch (Ryan Reynolds Ryan Reynolds) is a playboy, partying with girls every night. The two are getting tired of their existing lives and want to try each other's lives. The two men expressed their wish of "I want your life" to the "goddess" in the fountain. Unexpectedly, the wish came true the next day. Dave, hidden in Mitch, can date sexy Sabrina (Olivia Wilder Olivia Wilde), while Mitch, hidden in Dave's body, has to see his beautiful wife and can do nothing.