Unknown Dimension: The Story of Paranormal Activity
- Anno: 2021
- Nazione: United States of America
- Genere: Documentario, Horror
- Studio: Masimedia, Candy Heart Productions, Paramount Players
- Parola chiave: behind the scenes
- Direttore: Joe Bandelli
- Cast: Lauren Bittner, Oren Peli, Brit Shaw, Katie Featherston, Jason Blum, Akiva Goldsman