It Takes Two is a 1995 film starring Kirstie Alley, Steve Guttenberg and Mary-Kate and Ashley Olsen. The movie title was taken from the song, "It Takes Two", by Marvin Gaye and Kim Weston, which was featured in the closing credits. It Takes Two boasts some similarities to Mark Twain's The Prince and the Pauper, which was pointed out in Leonard Maltin's review of the film. It is also similar to the novel Lottie and Lisa by Erich Kästner, which was filmed as The Parent Trap. Two unrelated young girls who happen to look identical suddenly meet. Amanda Lemmon (Mary-Kate Olsen) is an orphan, and she is about to be adopted by the Butkises, a family whom she doesn't like. She actually wants her child-loving social worker, Diane Barrows (Kirstie Alley), to adopt her instead. Diane would like to do so, but authorities will not let her because of her low salary. Alyssa Callaway (Ashley Olsen) is coming home from her boarding school's piano recital competition, only to find that her wealthy father, Roger (Steve Guttenberg), is about to marry Clarice Kensington (Jane Sibbett) a socialite who threatens to send her soon-to-be stepdaughter to boarding school in Tibet.