Having completed an extraordinary body of silent films in 1929,
Fritz Lang entered the sound era with this bold masterwork, an expressionist thriller that captured the ugly mood of Germany just before the Nazis came to power, and was banned as soon as they took over.
Fritz Lang's films are marked by an uneasy tension between moral opposites: light and dark, innocence and evil, order and chaos.
M is often cited as the first and greatest of all psychological thriller. I think that this movie using an expressionist style to create a sense of panic, suspicions and shadows manages to always catch your breath.
Here is the available link with the movie subtitled in four different languages:
