This is kind of a "chick flick" but I liked it quite a bit anyway. Gwyneth Paltrow plays Catherine, who is beset on all sides by (a) her crazy, brilliant, recently dead math professor father; (b) her well-meaning manipulative sister; (c) one of her father's ex-students, who's going through the great man's notebooks, hoping to tease out some publishable mathematics from all the insane rambling; (d) her own self, because she's desperately afraid that she's as nutty as her dad, and that her brilliant talents might be as delusional as pop's.
That all sounds kind of dreary, but the movie has quite a bit of humor. Much of the script involves University faculty and students, and displays not one whiff of reverence toward them, so that's good too. In addition to Gwynnie, the first-rate cast includes Anthony Hopkins, Jake Gyllenhaal, and Hope Davis.