If you loved The 400 Blows, try The Last Metro
A bridge between a film you've already seen and one most people haven't. The Last Metro has roughly 4.5× fewer votes than The 400 Blows — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by François Truffaut, and they both carry the bittersweet, foreign gem mood tags, and they sit in Drama territory. If that's the register that drew you to The 400 Blows, the second film will land in a comparable space — through a different lens.
What The Last Metro is
Occupied Paris turns theater into wartime hide-and-seek for an actress doubling as both star and producer. She and her hidden husband keep the curtain up while the Gestapo prowls the aisles. Sadly, it never gets less complicated than the first act.

