Right off the top, let me just say I know little to nothing about math. And even though the main characters in this film are math geniuses, my lack of knowledge did not hinder me from liking this film. Math is only the background…the basis of this film, not the plot. In a nutshell, it’s a story of a daughter who just lost her father. Add to that the father was a math genius…but also insane (later in life). Add that the daughter is also a math prodigy and fears following her father’s footsteps down the path of mental illness. Yes, it’s a heavy subject but the film moves along pretty quickly through all of it…no, it’s not a fast-paced, edge-of-your-seat film but what film about math geniuses is? Based on a successful stage play, this is a drama…a dark drama about family relationships and personal soul-searching. The stand out thing about Proof is Gwyneth Paltrow’s performance. To me, this is by far her best acting work. She is emotional without being too over the top and she’s sorrowful without being too sappy. There are several scenes where there are intense close-ups of her face…and just through the look in her eyes and her facial expression, she tells the audience everything we need to know about her character’s state of mind at that very second. A very powerful performance to top off a strong and meaningful film.