If you don't believe in yourself, who will believe in you? Things that are intangible are hard to prove- sanity, love and faith! John Madden's PROOF tests these very issues. This Friday night, watch the story of a daughter of a brilliant but mentally disturbed mathematician, who tries to come to grip with her possible inheritance: his insanity. Starring Gwyneth Paltrow, Anthony Hopkins, Hope Davis and Jake Gyllenhaal, watch the exclusive premiere of Proof, this Friday night, February 23rd at 9 pm on Star Movies.

In Chicago, on the day of her twenty-seventh birthday, Catherine (Gwyneth Paltrow) receives her sister Claire (Hope Davis) from New York for the funeral of their father Robert (Anthony Hopkins), who passed away a couple of days before. Robert was a brilliant mathematician that became bughouse, and Catherine had lived with him for the last five years, inclusive quitting her studies in the faculty, and she is concerned about having inherited his insanity.



The mathematician of the University of Chicago, Hal (Jake Gyllenhaal), is making a research in Robert's notebooks, trying to find any brilliant proof that Robert might have produced in one moment of lucidity. When Hal has one nightstand with Catherine, she gives a notebook to him with the development of a unique mathematics theory that Catherine claims that she developed. Hal and Claire do not believe on her, until the truth is disclosed.

• Gwyneth Paltrow reprises the role of Catherine that she had played on stage in London's West End.
  
  
• The plot of the original play was based on the life of John Nash, professor at Princeton, who won the Nobel Prize for his work in game theory and also spent many years suffering from schizophrenia. His story was later adapted into A Beautiful Mind (2001).
  
  
• The role of Catherine was originated by Mary-Louise Parker in 2000 at the Walter Kerr Theatre in New York. Her performance won her a 2001 Tony Award for Best Actress in a Play and a 2001 Drama Desk Award for Outstanding Actress in a Play.
  
  
• Gwyneth Paltrow was pregnant (with Apple) while filming.