Continuity mistake: When Bugs spins the diving board around after he has put on his bathing suit, you can see the handles of the ladder in front of him when he dives off, but when we see Bugs pretending to take the dive, the handles have disappeared.
Continuity mistake: When the three pigs are reading a book at the beginning of the cartoon, the front cover has "Children's Stories" on the red rectangle, but in the next shot the words have disappeared.
Continuity mistake: When the grasshopper is performing his audition at the start of the cartoon, you can see there is nothing by the door, but when the door opens and the grasshopper appears, a spittoon and a cigarette end have appeared.
Continuity mistake: When the mouse (hidden in a vase) tiptoes on the table at the start of the short, the bread on the plate is initially pointing up, but in the next shot it is pointing down.
Continuity mistake: When we see "Grandpa's Folly" being 'scratched' in his starting box, the box has no door in front of it, but when we see the boxes at the start of the race in the next shot, a door has suddenly appeared.
Continuity mistake: When Porky realises that they are celebrating Christmas in April instead of December, the numbers on the month of April on the calendar change position between shots.
Continuity mistake: After Tom has drunk a bucket of water, the baby woodpecker pecks inside his stomach and water then seeps out through tiny holes in his body. At this point, you can see Tom is completely surrounded by water, but when Jerry knocks Tom's tail in the next shot, the water has disappeared.
Continuity mistake: During the poker game, the Colonel says "I've got five aces" and he lies down his cards in front of him. You can see that next to the Colonel there is half a coin and a pack of playing cards. When Bugs says "I've got six aces, sir." he takes the half-coin away from the Colonel, but the Colonel's cards and the pack of playing cards have disappeared.
Continuity mistake: The automatic sandwich maker makes them by cutting up both the salami and bread and then puts them together. When they're placed on the plates in the next shot, the salami and bread have both disappeared.
Continuity mistake: When the coyote is tossing the boomerang up and down, his tail keeps disappearing and re-appearing.