During the opening credits, when Toody and Schnauser are in the car reading, Toody steers left before hitting the dirt ramp, but the ramp is on the right side of the road.
When Velma and Muldoon are in the police car tracking Horst, the lace front of Velma's wig is very obvious.
When Toody is on the subway, the stickers on the door say "New York." When the train is going by, you can see a TTC (Toronto Transit Commission) logo on the side of the subway car.