Christopher Reeve later made even higher gains for "Superman III" (1983), though for "" (1987), he decided it would be healthier to focus more on cardiovascular workouts. One of the reasons Reeve could not work out as much for "" was an emergency appendectomy he had in June 1986. Reeve was never a Superman or comic book fan, though he had watched "Adventures of Superman" starring George Reeves. Reeve found the role offered a suitable challenge because it was a dual role. He said, "there must be some difference stylistically between Clark and Superman. Otherwise, you just have a pair of glasses
Superman in film that in his absence Lois Lane has given birth to a son and become engaged. Singer chose to follow Donner's lead by casting relatively unknown Brandon Routh as Superman, who resembled Christopher Reeve somewhat, and more high-profile actors in supporting roles, such as Kevin Spacey as Lex Luthor. Singer brought his entire crew from "X2" to work on the film. Via digitally-enhanced archive footage, the late Marlon Brando appeared in the film as Jor-El. "Superman Returns" received positive reviews and grossed approximately $391 million worldwide. In February 2006, four months before the release of "Superman Returns", Warner Bros. announced a