If you want to know a movie that I actually heard mathematicians discussing, it would be "A Beautiful Mind", and then only because some people were complaining about how the minor characters misrepresented the mathematicians and especially how the Princeton Math department was unfairly caricatured in order to create dramatic tension (you need an antagonist, after all).
In reality Nash was treated with incredible generosity and kindness, and was given extreme affordances. For example, he visited Nirenberg at Courant and gave him a stack of hundreds of pages of dense, hand written notes that were the proof of the embedding theorem, and Nirenberg took enormous time to go through it and try to understand what Nash did, and then championed the proof. With no renumeration or credit, just as a professional courtesy and desire to see if the proof is correct. Nash was not easy to work with, but because so many people were willing to devote time to reviewing and correcting the proof -- which took 5 years -- it was eventually published. Moser, Gromov, Chern, and Kuiper all played a massive role, donating huge amounts of their personal time in order to help Nash.
But, as is usually the case with real life, it doesn't make for a good 2 hour dramatic story. It's a shame, because the real story is a great story.
Source: my mom is a therapist who hates it.
Its actually about a person who has been abused all his life finally allowing himself to love himself and allowing others to love him.
It's apples. "How do you like them apples" That's the whole movie.
Will likes apples. Sean likes apples. That connection is the whole movie. Two guys who finally found someone else who gets it, who really gets apples. I cried.