The authorship of The Associated Press’s renowned “napalm girl” photograph is being called into question in the new documentary “The Stringer,” which premiered at the Sundance Film Festival in Utah

After a half-century of public silence, a freelance photographer from Vietnam has asserted he took one of the most renowned and powerful photos of the 20th century — the image of a naked girl fleeing a napalm attack that has long been credited to a staff photographer from.