Revealing mistake: When Bela Lugosi walks off screen, it's obviously a freeze frame. The swaying tree stops moving and even though he was hit by a car, his shadow is still visible. (00:07:55)
Revealing mistake: When Wilby is in the car being chased by the police officers while he is a dog, in some scenes the dog is a real dog and in other scenes it is just a person in a dog costume.