None.

The Wolf hits the Cat's head, and steps on his foot later in the film.

Geppetto is swallowed by a whale, and the same happens with Pinocchio much later.

A character says "nitwit" near the end.

None.

Pinocchio's "papa", Geppetto, is swallowed by a giant whale. This can be little upsetting.

Pinocchio and another boy are transformed into donkeys, so they can be taken into circus. The transformation itself happens quite fast.