So effervescent and charming that one can easily forget its importance in film history, Jean Vigo’s enormously influential portrait of prankish boarding-school students is one of cinema’s great acts of rebellion. Based on the director’s own experiences as a youth, Zéro de conduite presents childhood as a time of unfettered imagination and brazen rule-flouting. It’s a sweet-natured vision of sabotage made vivid by dynamic visual experiments—including the famous, blissful slow-motion pillow fight.