John MaddenDirector
Gwyneth PaltrowCatherine Llewellyn
Anthony HopkinsRobert Llewellyn
Jake GyllenhaalHarold 'Hal' Dobbs
Hope DavisClaire Llewellyn
Danny McCarthyCop
Tobiasz DaszkiewiczLimo Driver
Gary HoustonProfessor Barrow
Leigh ZimmermanFriend at Party
Colin StintonTheoretical Physicist
Leland BurnettBand Vocalist
John KeefeUniversity Friend
Chipo ChungUniversity Friend
Proof
- drama
- mystery
05 Sept 2005
The biggest risk in life is not taking one.
Catherine is a woman in her late twenties who is strongly devoted to her father, Robert, a brilliant and well-known mathematician whose grip on reality is beginning to slip away. As Robert descends into madness, Catherine begins to wonder if she may have inherited her father's mental illness along with his mathematical genius.
