Proof
- Annu: 2005
- Paese: United States of America, Canada, United Kingdom
- Genre: Drama, Mystery
- Studio: Miramax, Endgame Entertainment, Hart-Sharp Entertainment, Subotica, Serendipity Point Films, First Choice Films, Movie Central, Ego Film Arts
- Parolla chjave: paranoia, mathematics, mathematician, proof, dementia, notebook, campus, grief, university, illness, mental illness, paper, disturbed, death of a loved one
- Direttore: John Madden
- Cast: Gwyneth Paltrow, Anthony Hopkins, Jake Gyllenhaal, Hope Davis, Danny McCarthy, Tobiasz Daszkiewicz