Documentaries
You Will Believe: The Cinematic Saga of Superman
2006
as Self
Writing
Superman II: The Richard Donner Cut
2006
Screenplay
Takedown
2000
Author
Santa Claus: The Movie
1985
Story
Superman III
1983
Screenplay
Superman II
1980
Screenplay
Superman
1978
Screenplay
The Crazy American Girl
1977
Writer