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Poster of Proof

Movie 2005 1h 40m

Proof

The biggest risk in life is not taking one.

DramaMystery
Watch on Kanopy
us

Where to watch in United States

Checked October 11, 2026

Stream3Included with a subscription
fuboTV
Paramount Plus Premium

AlsoParamount Plus Essential

Paramount+ Amazon Channel

AlsoParamount+ Roku Premium Channel

Free1No subscription, no ads
Kanopy
Free with ads1No subscription, with ad breaks
YouTube Free
Rent6Pay once, watch for a limited timePrices are shown on each service
JustWatch TV
Amazon Video
Apple TV Store
Google Play Movies
YouTube
Fandango At Home
Buy5Pay once, keep it in your libraryPrices are shown on each service
Amazon Video
Apple TV Store
Google Play Movies
YouTube
Fandango At Home
Available in 47 other countries 6 with streaming

Links to services may earn us a commission. Prices and catalogs change often, so check the service before you pay. Data from JustWatch via TMDB.

Availability history in United States

Last checked

  1. On 13 services when we started tracking Apple TV Store, Paramount+ Roku Premium Channel, Kanopy, Paramount+ Amazon Channel, Paramount Plus Essential, Paramount Plus Premium, fuboTV, Fandango At Home, YouTube, JustWatch TV, Amazon Video, Google Play Movies, YouTube Free

We re-check popular and new titles several times a day and log every change. See what is new in United States

Overview

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.

Cast

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