Revealing mistake: When Louie is driving from the mansion, at several times it is obvious that he is not really driving the car. When the car is going straight ahead, he often turns the wheel, and vice versa. This is most obvious just after Vinnie has died, and Louie is asking "Vin? Hey, Vin, you with me over there?". The car is then going through a 90 degree bend in the road, but Louie does not move the steering wheel at all.