“Young people, if you want to understand America, get off your ass and go see it,” wrote Hollywood maverick Samuel Fuller, director of such offbeat, hard-hitting movies as The Steel Helmet (1951), Shock Corridor (1963), and The Naked Kiss (1964). Fuller lived a life as colorful as anything he put onscreen, and this affectionate documentary by his daughter, Samantha, distinguishes itself from most such endeavors by minimizing the usual clip-illustrated filmography to focus largely on his formative experiences as a teenage crime reporter in New York City and an infantryman in Europe and North Africa during World War II. Excerpts from his 2002 autobiography, A Third Face, are performed by various colleagues and admirers (James Franco, Jennifer Beals, Bill Duke, Mark Hamill, Joe Dante, William Friedkin), and Samantha makes prominent use of the 16-millimeter movies her father amassed during his lifetime, including footage of his division liberating a German concentration camp.