ABC Video Preview: Robert Pattinson Robert Pattinson Talks About "Wonderful" Butt Cheek Massage & Valium "

ABCNews — ABC News' Chris Connelly spent the afternoon with Robert Pattinson for an interview airing on Nightline Monday 6/14 at 11:35 p.m. ET on ABC. The Twilight heartthrob talks about how the role gets more physically demanding in the third book, and recounts a funny story about tearing his hamstring on the first day of shooting the original Twilight film and the interesting treatment for the injury from his physiotherapist.