Conviction is based on the true story of Betty Anne Waters (Hilary Swank) a high school dropout who spent nearly two decades working as a single mother while putting herself through law school, tirelessly trying to beat the system and overturn her brother's (Sam Rockwell) unjust murder conviction. At its heart, Conviction is an exploration of the profound bond between a brother and sister--a love so deep, so unequivocal, so complete that it becomes a force that will not be denied or defeated.  Hilary Swank gives another tremendous performance--steely, determined, vulnerable--in the courtroom/family drama Conviction. The film is based on a real case, of Betty Anne Waters (Swank), who as a last resort puts herself through law school to take on the case of her brother, Kenny (Sam Rockwell, also outstanding). Kenny is convicted of murder, despite a weak prosecution case, but Betty Anne can't get any lawyer to explore a retrial or appeal. Director Tony Goldwyn ( Dexter, Damages) keeps the action moving along crisply and believably, even during the almost interminable stretches of Kenny's imprisonment. The terrific script by Pamela Gray ( Music of the Heart) weaves in occasional shadows of doubt about whether Kenny is actually innocent, so that a story that could be formulaic is anything but. The viewer isn't sure most of the way through Conviction if Kenny is guilty or not--but is completely swept up in Swank's incredible performance depicting Betty Anne's own conviction--that "you do anything for your family. Period." As she did in Boys Don't Cry, Swank puts her own gritty spin on a real-life character, whom she inhabits like a second skin. Her Betty Anne is a blue-collar pit bull, and her sheer determination is itself a force of nature. The supporting cast of Conviction also shines, including Minnie Driver as Betty Anne's law school pal, and an especially effective Juliette Lewis playing Kenny's broken-down ex-girlfriend, who's buried some secrets of her own. Also a standout is Melissa Leo as the policewoman whose initial arrest of Kenny might have been loaded with her own agenda. The chemistry, especially between Rockwell, a man very nearly defeated after years behind bars, and Swank, is palpable and will capture the viewer in intense dramatic territory that won't be soon forgotten. --A.T. Hurley