Hairspray movie video

A musical isn't easy for everyone to appreciate (unless you are from India and enjoy Bollywood movies) but after watching Chicago, Moulin Rouge, and West Side Story, I am now fascinated by them, especially if the cast includes good actors like John Travolta, Queen Latifah, and Michelle Pfeiffer. Hairspray is a remarkable movie and the energy at the premiere was incredible. Watch this video along with clips from the film and interviews with the cast members, but what was Katie Holmes doing there? Did she come because she and Tom Cruise are Scientologists like John Travolta?