Writer
Director
Himself
Director
Director
Writer
Editor
Policeman
Post Production Supervisor
Editor
Script
Director
Writer
Director
Editor
Idea
Creator
Narrator (voice)
Director
Writer
Editor
Documentarist (uncredited)
Screenplay
Director
Editor
Director
Writer
Director
Writer
Assistant Director
Documentist (uncredited)
Director
Writer
Producer
Field Interviewer (voice) (uncredited)
Director
Writer
Producer
Writer
Director
Director
Producer