Robin Williams is a good choice for the lead, pairing his rough, burly figure with a boyish charm, which makes him both endearing to his young costars and physically appropriate for the action scenes. He doesn't have a lot of room to improvise, though, which is a drawback, and the ambitious special effects have aged very poorly. Hammy supporting work from David Alan Grier doesn't help the cause, fitting right in with the slow stream of hollow secondary characters, though Jonathan Hyde does deserve positive marks in a limited villainous role. It tries to reach for substance and heart, but in the end this one is just a simple slab of watery, kid-friendly action with an unusually good hook.
ere on point with the era and this film has gained a well deserved cult following.