M · reception & legacy

How M has been received, argued over, and remembered.

The arc

A hit in Weimar Germany and Lang's own declared favourite of his films, M was banned by the Nazis in 1934 and then only grew in stature — it now sits comfortably in every greatest-films conversation as the movie that proved sound cinema could be art.

What's debated

The evergreen debate is Lorre's final courtroom-of-criminals monologue: does the film dare you to sympathise with a child murderer, and is that its genius or its moral queasiness?

Its footprint

The whistled 'In the Hall of the Mountain King' and the chalk 'M' pressed onto a shoulder are two of cinema's most referenced images, and Peter Lorre's saucer-eyed face became a pop-culture archetype, endlessly caricatured everywhere from Looney Tunes onward.

Where it stands

An unshakeable canon pillar — routinely the highest-rated film of the early 1930s on Letterboxd and a standing 'you must have seen this' for anyone getting into classic cinema.