Proof | 2005

Directed by: John Madden

Proof Poster

Main Plot

The daughter of a brilliant but mentally disturbed mathematician, recently deceased, tries to come to grips with her possible inheritance: his insanity. Complicating matters are one of her father's ex-students, who wants to search...


  • Gwyneth Paltrow played Catherine in the movie "Proof," who is a troubled mathematician dealing with her father's death. Gwyneth Paltrow
  • Anthony Hopkins' character in Proof is named Robert Llewellyn and he plays the role of a brilliant mathematician. Anthony Hopkins
  • Hope Davis' character in the movie "Proof" is named Claire and she plays the role of Catherine's older sister. Hope Davis

Ending Explained

In the ending of Proof, Catherine, a troubled young woman, struggles to prove that she is the author of a groundbreaking mathematical proof, while also dealing with the loss of her brilliant but mentally unstable father. With the help of her sister, Claire, and a former student of her father's, Hal, Catherine finds the strength to confront her fears and assert her own genius. The play concludes with Catherine's proof being recognized and her finding a sense of closure and acceptance in her life, as she begins to move forward with hope and confidence.

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John Madden Gwyneth Paltrow Anthony Hopkins Hope Davis