Was it something in the water? In the late 1980s, Hollywood came up with no fewer than three different versions of the same story: A child's mind winds up in an adult's body and (usually) vice versa. In fact, that was the name of one of them, Vice Versa. The other one was Big. This one, which starred Dudley Moore and Kirk Cameron, was perhaps the weakest of the group, with Moore as a heart surgeon and Cameron as his goofy kid; they change places and must cope with each other's problems for a day. But Cameron isn't much of an actor and Moore can't stop mugging long enough to show us that he's playing a teen in an adult body. --Marshall Fine