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.
Unfortunately the movie Proof is not yet available on Disney Plus.
| Production | Bob Weinstein | Executive Producer |
| Production | Alison Owen | Producer |
| Editing | Mick Audsley | Editor |
| Production | John N. Hart | Producer |
| Production | Julie Goldstein | Executive Producer |
| Production | James D. Stern | Executive Producer |
| Directing | John Madden | Director |
| Production | Jeffrey Sharp | Producer |
| Production | Harvey Weinstein | Executive Producer |
| Sound | Stephen Warbeck | Original Music Composer |
| Production | Robert Kessel | Producer |
| Camera | Alwin H. Küchler | Director of Photography |
| Production | Billy Hopkins | Casting |
| Production | Kerry Barden | Casting |
| Costume & Make-Up | Jill Taylor | Costume Design |
| Costume & Make-Up | Charlotte Sewell | Costume Supervisor |
| Production | Suzanne Smith Crowley | Casting |
| Costume & Make-Up | Nicola Clarke | Hair Department Head |
| Costume & Make-Up | Rebecca Lafford | Makeup Department Head |
| Art | Alice Normington | Production Design |
| Directing | Kim Armitage | Script Supervisor |
| Art | Keith Slote | Art Direction |
| Art | Barbara Herman-Skelding | Set Decoration |
| Art | Charmian Adams | Supervising Art Director |
| Sound | Nyree Pinder | Music Supervisor |
| Art | Bruce Bigg | Property Master |
| Camera | Bill Kaye | Still Photographer |
| Sound | Rebecca Gatrell | Music Supervisor |
| Production | David Pinnington | Location Manager |
| Writing | Rebecca Miller | Screenplay |
| Sound | Mark Auguste | Supervising Sound Editor |
| Sound | Peter Lindsay | Production Sound Mixer |
| Writing | David Auburn | Theatre Play |
| Writing | David Auburn | Screenplay |
| Sound | Becky Bentham | Music Supervisor |
| Sound | Chris Baron | Musician |
| Sound | Sam Auguste | Foley Editor |
| Costume & Make-Up | Tracey Lee | Makeup Artist |
| Sound | Ruth Sullivan | Foley Artist |
| Sound | Tim Cavagin | Sound Re-Recording Mixer |
| Sound | Daniel Laurie | Dialogue Editor |
| Sound | Daniel Laurie | ADR Editor |
| Camera | Olly Tellett | Focus Puller |
