Protestors didn't dampen the celebratory mood for Katie Holmes and Tom Cruise at Monday's premiere of Tropic Thunder in Los Angeles. Holding hands, Holmes — in heels that made her considerably taller than Cruise — and her husband walked the red carpet. After they finished taking pictures, they signed autographs for fans before heading into the theater. See famous couples with big height differences. During the last scene of the movie — which features Cruise in a dancing sequence ...