In All the Cats Join In (1946), when the blonde teenage boy and brunette teenage girl in their car pick up their first passenger, a brown haired teenage hitchhiker boy, their car is speeding so fast that his shoes fall off when he is picked up. Yet in the next shot of the car, the hitchhiker boy can be seen in the back seat of the car with his feet propped up and his shoes are back on his feet.
When newspapers announcing the discovery of Willie the Whale are shown, one compares him to the "Lock Ness Monster." The correct spelling is "Loch".