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 HBO Max.
| Camera | Alwin H. Küchler | Director of Photography |
| Production | Robert Kessel | Producer |
| Sound | Stephen Warbeck | Original Music Composer |
| Directing | John Madden | Director |
| Production | James D. Stern | Executive Producer |
| Production | Harvey Weinstein | Executive Producer |
| Production | Julie Goldstein | Executive Producer |
| Production | John N. Hart | Producer |
| Production | Jeffrey Sharp | Producer |
| Production | Bob Weinstein | Executive Producer |
| Editing | Mick Audsley | Editor |
| Production | Alison Owen | Producer |
| Production | Billy Hopkins | Casting |
| Art | Keith Slote | Art Direction |
| Art | Alice Normington | Production Design |
| Art | Barbara Herman-Skelding | Set Decoration |
| Production | Kerry Barden | Casting |
| Costume & Make-Up | Jill Taylor | Costume Design |
| Costume & Make-Up | Nicola Clarke | Hair Department Head |
| Costume & Make-Up | Charlotte Sewell | Costume Supervisor |
| Directing | Kim Armitage | Script Supervisor |
| Production | Suzanne Smith Crowley | Casting |
| Costume & Make-Up | Rebecca Lafford | Makeup Department Head |
| Art | Charmian Adams | Supervising Art Director |
| Art | Bruce Bigg | Property Master |
| Sound | Peter Lindsay | Production Sound Mixer |
| Camera | Bill Kaye | Still Photographer |
| Sound | Mark Auguste | Supervising Sound Editor |
| Writing | David Auburn | Theatre Play |
| Writing | David Auburn | Screenplay |
| Writing | Rebecca Miller | Screenplay |
| Sound | Nyree Pinder | Music Supervisor |
| Sound | Becky Bentham | Music Supervisor |
| Sound | Rebecca Gatrell | Music Supervisor |
| Production | David Pinnington | Location Manager |
| 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 |
