Manohla Dargis (NY Times) wasn't too kind to the film in her review:
"It's funny how movies about smart people often play so dumb. Take the terribly serious film adaptation of David Auburn's much-admired, prize-laden Broadway play, "Proof." This contemporary drama concerns the daughter of a famous dead mathematician struggling to come to terms with both her father's legacy and her own troubled mind. Fearful that she has inherited his madness, Catherine may instead have inherited his genius, and it's this tension - is she ring-a-ding nuts or just brilliant - that is meant to fuel the story's professed suspense, making it something of a psychological whodunit.
As adapted to the screen by Mr. Auburn and Rebecca Miller, and directed by John Madden, the film "Proof" suggests yet another possibility for why Catherine behaves as she does: mainly, that this chick is a total pill. It takes some time for this to sink in, though there are intimations of trouble almost from the start. We first see Catherine (Gwyneth Paltrow) channel-surfing in a sitting room, bathed in the blue light of the droning television and keeping company with the likes of Ron Popeil. This solitary spell is suddenly broken, first by a flashback and a glimpse of a sunnier past, and then by the rumpled form of Anthony Hopkins as Catherine's father, Robert. More a complex than a viable character, Robert happens to be dead, if not quite dead enough for his difficult daughter.
Despite the inconvenience of his death, the father talks to the daughter, or rather she talks to him, the two as well matched and cozy as a pair of old bedroom slippers. She swigs some phony champagne (from the Midwest); he, meanwhile, inquires about the nonexistent plans for her birthday. (Perhaps because Mr. Madden all but gropes his 32-year-old actress's face with his camera, the character is somewhat older than she is in the play.) Though played by the winsome Ms. Paltrow, Catherine, it turns out, is friendless - absent confidant, lover or much of any human companionship. Having nursed her father in the last years of his life, she has retreated from the land of the living and curled up inside herself. It is a self as dark and deep as an underground cave, and as uninviting.
How Catherine escapes that cave - and we, presumably, along with her - involves some pop psychology (the drama of the gifted child, ad infinitum), a shot of romance and the usual closure that will bundle her daddy issues into a manageable package. Toggling awkwardly between the past (Catherine smiling) and the present (Catherine frowning), the filmmakers try to build a case for how the character lost her way, and why. Catherine, it emerges, might have written a brilliant proof that may eclipse the work of her father. Whether she has the goods or is just siphoning his legend becomes the story's way into her character, as does her relationship with her disbelieving older sister, Claire (Hope Davis, in a thankless role), and her budding interest in one of her father's students, Hal (Jake Gyllenhaal)."
Solving for X: Is She Crazy or a Math Mastermind?
Updated On: 9/16/05 at 06:09 AM