"I want to spend the night with you." "You mean sleep over? Okay, but I get to be on top." Picture, if you will, an adult Josh Baskin curled up in a fetal position in on the bed in a seedy motel room on his first night alone in New York City. Or jumping on a trampoline with Susan. Or playing keep-away from Paul with a racquetball. Now picture those scenes with Robert DeNiro. Because that's almost what happened. Given the natural youthful exuberance and easy charm he'd demonstrated in his roles to date, it's little wonder Tom Hanks was Penny Marshall's first choice for the lead role in her coming of age comedy about a boy who makes an impulsive wish and finds himself aging from 13 to 30 overnight. Unfortunately, Hanks' schedule was occupied with filming Dragnet and Punchline . After several other actors were considered (John Travolta, Albert Brooks, and Kevin Costner, to name a few), De Niro was cast. He even prepped for the role...