Continuity mistake: When Porky slams the window after seeing Rover on the ledge, you can see the window has nothing on it. But when Porky turns around and sees Rover about to fall over the edge, a catch suddenly appears.
Continuity mistake: When Sandy is watching the chef toss hot cakes at the American Grill at the start of the cartoon, you can see there is a jug and some dishes at the far end of the counter, but when the camera pans in on the chef, the jug and dishes are now much closer to him.
