Per Richard Donner (the director of the original Superman as well as countless other kickass movies) http://latimesblogs.latimes.com/herocomplex/2008/10/richard-donner.html

Bryan Singer’s 2006 film, “Superman Returns,” felt like a valentine to the Donner work on Superman and the older director received it with fondness. “I totally enjoyed it. I saw it just that once. I went to the theater not knowing anything. Bryan and I had spoken many times before but I didn’t want to know anything about the film. I went as the audience. And I thought, ‘Wow, he really nailed it.’ There’s that one scene, when that piano slid across the floor on the boat? I was startled. It was great.”

When Richard Donner thinks the great thing about your superman movie is a piano sliding across the floor of the boat you did something dreadfully wrong…. and you should probably be punished. Personally I thought the most exciting thing about Singer’s film was the opening credits. Because they were all whoosh and whiz.