20 credits
- Bookworms
2025 (himself)
- Piece by Piece
2024 Carl Sagan (voice) (archive sound) (uncredited)
- Linhas Cruzadas
2021 Novel
- World
2020 Creator
- Star Stuff: A Story of Carl Sagan
2015 Writer
- Wanderers
2014 Voice
- Cosmos
2014 Writer
- The Real History of Science Fiction
2014 Himself (archive footage)
- Owned & Operated
2012 Carl Sagan
- An Inconvenient Truth
2006 Thanks
- Contact
1997 Original Story
- We Are Here: The Pale Blue Dot
1996 Writer
- Threads
1984 Scientific Consultant
- Cosmos: A Personal Voyage
1980 Writer
- Who's Out There?
1975 Himself
- NOVA
1974
- In Search of Ancient Astronauts
1973 Himself
- The Violent Universe
1969 Narrator
- Pale Blue Dot
Himself
