None.

The majority of the violence and murders take place off screen.

Jean Lamarte (Ludwig Stossel) and Gasten Morrell (John Carradine) struggle and Morrell eventually strangles him, off screen. A man is knocked out.

Gasten puts his hands around Lucille's (Jean Parker) neck, this scene is very brief and doesn't lead to her death.

Gasten falls from a high building into the river Seine.

A man takes a cigar out of his holder and goes to light it, but doesn't.

There is no alcohol or drug usage in Bluebeard.

Some scenes may be frightening for younger children. Some gunfire is heard but no one hit. Police chase a man through the sewers and later on a rooftop.