Writing Marshall Riggan Other Credits OK Buckaroos Writer 2010 Air & Space Smithsonian: Dreams of Flight - Higher Faster Farther Writer 1995 Air & Space Smithsonian: Dreams of Flight - Another Step Into the Unknown Writer 1994 The Cu Chi Tunnels Script Editor 1991 So Sad About Gloria Screenplay 1973 Six Hundred and Sixty-Six Writer 1972 Agent-readable