Everyone knows Tom Cruise #8212;or at least what he wants us to know. We know that the man behind the smile overcame a tough childhood to star in astonishing array of blockbusters: "Top Gun, Rain Man, Born on the Fourth of July, A Few Good Men, Jerry Maguire, "three "Mission: Impossible "movies, and more. We know he has taken artistic chances, too, earning him three Academy Award and Golden Globe nominations. But beyond that, the picture becomes a bit less clear #8230; #8220;Morton digs deep for the real Tom Cruise. " #8212;Cindy Adams, "The New York Post"We know that Tom is a devoted follower of the Church of Scientology. We know that, despite persistent rumors about his sexuality, he has been married to Mimi Rogers, Nicole Kidman, and Katie Holmes. But it was not until he jumped on Oprah #8217;s couch to proclaim his love for Katie and denounced Brooke Shields for turning to the #8220;Nazi science" of psychiatry that we began to realize how much we did "not "know about the charming, hardworking star. For all the headlines and the rumors, the real Tom Cruise has remained surprisingly hidden #8212;until now. #8220;Scalding. " #8212;"The New York Times"* With 16 pages of photos *