"The 400 Blows" is the famous 1959 film by New Wave director, Francois Truffaut. (The title is a French expression meaning "to raise 'heck'.") Filmed in black and white, with very simple music and the raw look of a low-budget documentary, it is a glimpse into the life of troubled adolescent. Antoine Doinel is poor, has cold and indifferent parents and teachers, and spends his days cutting school and getting into trouble. When his parents give up on him, he is sent to a juvenile detention facility that resembles a jail.
The cinema verite style of unsentimental photography and gritty locales manages to make even Paris look tawdry, almost ugly, because that's how Antoine views his life. Growing up neglected and misunderstood has made him a streetwise child who dreams of escape. The stark and sudden ending allows the viewer to decide what might happen to Antoine next (although Truffaut found the character so intriguing, he made three more movies about Antoine as he grows older).