Proof
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.
Where to stream Proof
Streaming now in the United States on fuboTV, Paramount Plus Premium, and Kanopy.
Rent or buy in the United States on JustWatch TV Store, Amazon Video, Apple TV Store, Google Play Movies, YouTube, and Fandango At Home.
Trailers and promos
Proof trailer
Proof | 'Save It' (HD) - Gwyneth Paltrow, Jake Gyllenhaal | MIRAMAX
Birthday Girl
Sisters
Sunday Morning
Proof | 'Security' (HD) - Gwyneth Paltrow, Jake Gyllenhaal | MIRAMAX
Machinery
Proof | 'Regrets' (HD) - Gwyneth Paltrow, Jake Gyllenhaal | MIRAMAX
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Frequently asked questions about Proof
Where can I watch Proof in the United States?
Proof is available to stream on fuboTV, Paramount Plus Premium, and Kanopy in the United States, and to rent or buy on JustWatch TV Store, Amazon Video, Apple TV Store, Google Play Movies, YouTube, and Fandango At Home. Streaming availability is provided by JustWatch and can change over time.
Is Proof on Paramount Plus Premium?
Yes. Proof is streaming on Paramount Plus Premium in the United States, alongside fuboTV and Kanopy.
Can I watch Proof for free?
Proof streams free with ads in the United States on Kanopy. A subscription is not required, though the service may ask you to register.
What are the ratings for Proof?
Proof scores 6.4 on The Movie Database.
Who stars in Proof?
Proof stars Gwyneth Paltrow, Anthony Hopkins, Jake Gyllenhaal, Hope Davis, and Danny McCarthy. John Madden is the director.
How long is Proof?
Proof runs 1h 40m (100 minutes).
When did Proof come out?
Proof was released on September 5, 2005.
Which studio made Proof?
Proof was produced by Miramax, Endgame Entertainment, and Hart-Sharp Entertainment in the United States.
What was the budget for Proof?
Proof was made on a budget of $20,000,000.
How much did Proof make at the box office?
Proof grossed $7,535,331 worldwide, against a budget of $20,000,000.
Ratings and metadata from The Movie Database (TMDB), streaming data from JustWatch. This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability checked October 2026.