Continuity mistake: Before Pollyanna arrives on the train, when Jimmy Bean pushes the metal hoop down the road, two girls stop their doll carriages right beside each other and grab their dolls, but in the next shot their carriages are about 4 feet apart, which is now wide enough for Jimmy to run between. (00:01:10)
Continuity mistake: As the cabin boy is cutting him loose, David Balfour's bruised cheek and black eye switch from the left side of his face to the right when one shot is reversed. (00:28:00)
Continuity mistake: When Daffy enters Bugs' living room wearing a rabbit costume, you can see the door is plain green. But when Elmer Fudd enters to confront Daffy, the door is now divided into three sections.
Continuity mistake: When Dr Jekyll enters his laboratory at the start of the cartoon, he locks the door with his key. After drinking the Hyde Formula, he turns into Mr Hyde for a short time before going back to Dr Jekyll. When Jekyll leaves the laboratory, he opens the door without unlocking it.
Continuity mistake: When Sam's spaceship points a ray gun at Bugs' home, you can see the elevator control box outside the home has nothing on it, but in the next shot there are now wires attached to the box.
Continuity mistake: When Bugs leaves his rabbit hole to join Wile E. Coyote at his picnic, you can see there is a jar of mustard near the end of the edge of the blanket. But when we see a full view of the blanket in the next shot, the jar has disappeared.
Continuity mistake: When Bugs reaches the top of the stairs in Bedlam Manor, Yosemite Sam (dressed in a suit of armour) tries to chop off Bugs' head with an axe, but Bugs ducks and Sam falls down the stairs. When we see Sam falling down the stairs in the next shot, Bugs has disappeared.