A large fire seriously damaged the set of the latest James Bond movie Sunday, caving in the roof of a sound stage transformed into a replica of Venice for the production of "Casino Royale." Pinewood Shepperton, the studio complex where the fire erupted, said filming for the Bond production had been completed. "Its film sets were in the process of being removed," the studio said in a statement. The cause of the fire was unknown. Three people who had been inside Pinewood Studios, about 20 miles west of London, were not hurt.