Based on the Pulitzer Prize-winning play by David Auburn, Proof follows a devoted daughter (Gwyneth Paltrow) who comes to terms with the death of her father (Anthony Hopkins) - a brilliant mathematician whose genius was crippled by mental instanity - and is forced to face her own long-harbored fears and emotions.

She adjusts to his death with the help of one of her father's former mathematical students (Jake Gyllenhaal) who searches through her father's notebooks in the hope of discovering a bit of his old brilliance. While coming to terms with the possibility that his genius, which she was inherited, may come at a painful price, her estranged sister (Hope Davis) arrives to help settle their father's affairs.

Directed by
John Madden

Cast
Gwyneth Paltrow - Catherine
Jake Gyllenhaal - Hal
Anthony Hopkins - Robert
Hope Davis - Claire
Gary Houston - Professor Barrow
Danny McCarthy - Cop

Production Co.
Endgame Entertainment
Hart Sharp Entertainment
Inside Track

Produced by
James D. Stern
Bob Weinstein
Harvey Weinstein

Studio
Miramax Films

Writer
David Auburn
Rebecca Miller

Music
Stephen Warbeck