There is a famous seduction sequence in this film between Marc Antony and Cleopatra. It takes place on a barge. No actual sex or nudity is shown, but it has been said that the rhythmic rowing of the men suggests sexual excitement building and that the whacking of the drum by the slave is DeMille's symbolic way of suggesting an orgasm.
Violence & Gore
Mild
Cleopatra kills Pothinus (who is hiding behind a curtain with a dagger) by thrusting a spear through a curtain.
Marc Antony commits suicide by stabbing himself.
Cleopatra kills herself by letting herself be bitten by a snake.