Tom Cruise is already starting to make the interview rounds for his film Knight and Day, even though it doesn't arrive in theaters until the end of next month. He and his costar Cameron Diaz will appear on today's episode of Oprah, and we've just gotten a sneak peek at his chat with the host. Any visit Tom pays to Oprah will always conjure up images of the couch-jumping episode, but he's proven in subsequent visits that he can keep calm. Oprah was curious to know all about 4-year-old Suri and especially her famous fashion sense. Tom said, "She likes to dress herself and wears whatever she wants to wear . . . She wants to wear it, she wears it . . . a girl wants to wear what she wants to wear. I'm not gonna tell her different. She's got great taste." He went on to praise Katie and her mothering skills for keeping Suri grounded despite all the press attention — check out the clip below.