Great choices. Here are a few more:

L'Age d'or 63 minutes

Battleship Potemkin 66 minutes

Vampyr 75 minutes

Boudu Saved from Drowning 85 minutes

Nothing Sacred 77 minutes

The Strange Affair of Uncle Harry 80 minutes

The Lady from Shanghai 87 minutes

The Palm Beach Story 88 minutes

Los Olvidados 80 minutes

Titicut Follies 84 minutes