El Secreto del Doctor Grinberg
- Annu: 2022
- Paese: Spain, United States of America, Mexico, United Kingdom
- Genre: Documentary
- Studio: Polar Star Films, Primo Content, Fosforescente
- Parolla chjave: metaphysics, scientist, conscience, consciousness, unsolved mystery, brain research, neurophysiology, neuro-scientist, mysterious disappearance
- Direttore: Ida Cuéllar
- Cast: Sperry Andrews, Sam Quiñones, Toni Karam, Estusha Grinberg, Jerry Grinberg, Ruth Cerezo