Proof
- Ano: 2005
- País: United States of America, Canada, United Kingdom
- Xénero: Drama, Mystery
- Estudo: Miramax, Endgame Entertainment, Hart-Sharp Entertainment, Subotica, Serendipity Point Films, First Choice Films, Movie Central, Ego Film Arts
- Palabra clave: paranoia, mathematics, mathematician, proof, dementia, notebook, campus, grief, university, illness, mental illness, paper, disturbed, death of a loved one
- Director: John Madden
- Reparto: Gwyneth Paltrow, Anthony Hopkins, Jake Gyllenhaal, Hope Davis, Danny McCarthy, Tobiasz Daszkiewicz