Everyone knows Tom Cruise - or at least what he wants us to know. We know that he overcame a difficult childhood to star in an astonishing array of blockbusters: "Top Gun", "Rain Man", "Born on the Fourth of July", "A Few Good Men", "Interview with the Vampire", "Jerry Maguire", three "Mission: Impossible" movies, "War of the Worlds", and more. We know he has taken artistic chances, too, and as a result has earned three Academy Award nominations and three Golden Globes, along with the respect of acting legends like Paul Newman and Dustin Hoffman. After that, the picture becomes a little less clear. We know that Tom is a Scientologist, but not necessarily what that means in his life. 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 the spring of 2005, when he jumped on Oprah"s couch to proclaim his love for Katie and denounced Brooke Shields for turning to the "Nazi science" of...