Other mistake: Louis is wearing Egon's ghostbusters uniform. The uniform shouldn't fit, because Egon is much taller than Louis.
Suggested correction: You can see while Janine is zipping it up and when he runs out of the firehouse, that the suit is extremely baggy on him, as would be expected because of the height difference.
LorgSkyegonOther mistake: At the end of the movie you see the Statue of Liberty looking down from the rooftop, and then you don't see it the next time we see the rooftop. Then it's on the ground. How can it move without them controlling it?
Suggested correction: Because it fell over, which requires only gravity.
LorgSkyegonAlso I think they are not controlling it, the positive slime turned it sentient.
lionhead