On Movies: Death-row drama stays true to life
In Conviction, based on a nightmare true story, Sam Rockwell plays Massachusetts convict Kenneth Waters, sentenced to life in prison in 1983 for a murder he didn't commit. It took his sister, Betty Anne Waters - Hilary Swank with a hardscrabble Bay State accent - 18 years to get Kenny released. A barkeep and a high school dropout, Betty Anne got her GED, went to college and then law school, in pursuit of her brother'…