A film with little dialogue and a lot of atmosphere,” wrote John Woo about Jean-Pierre Melville’s Alain Delon-starring existentialist heist movie. He’s not wrong. Despite a 130-minute runtime, it’s the epitome of economical storytelling, with not a single word or gesture wasted. The control Melville exerted over the filmmaking process to craft this effortlessly cool classic (“Every micron mattered,” states French film journalist Samuel Blumenfeld) is discussed in a revealing new documentary.