The Tower Theaters screens “I, Daniel Blake,” which tells of a widowed woodworker who lives according to his own common sense moral code. But after a heart attack leaves him unable to work and the state welfare system fails him, the stubbornly self-reliant Daniel must stand up and fight for his dignity, leading a one-man crusade for compassion that will transform the lives of a struggling single mother and her two children. Times vary. Tower Theater, 1508 SW Eighth St., Miami. Details: (305) 642-1264.