Proof (2005)

A young woman (Gwyneth Paltrow) has devoted years to caring for her mentally unstable father (Anthony Hopkins), a mathematical genius. But while she shares her father's unique mind and abilities, she fears she also inherited his madness. Based on the Pulitzer Prize and Tony award winning play by David Auburn and directed by John Madden (SHAKESPEARE IN LOVE). The film's title is twofold as it refers to proof as a mathematical term as well as evidence. While it has been opened up considerably from its theatrical roots, it remains an intimate film focusing on its four protagonists. The film serves as a reminder of what a wonderful actress Paltrow was (she played this role on the London stage) before she turned to "goop". She dominates the film with strong performances by Hopkins and Hope Davis as her sister. Jake Gyllenhaal is considerably weaker but then again, it's the least interesting character in the film/play. A film dealing with mathematics sounds imposing (especially if you're not into math) but the film's hub is in its emotional core, not in mathematical theory. With Roshan Seth and Gary Houston.