Continuity mistake: When the penguin cries after Bugs threatens him towards the end of the short, ice cubes fall from the penguin's eyes. When Bugs asks the penguin what is he going to do with only four days' vacation left, we return to the penguin, and the ice cubes have disappeared.
Continuity mistake: When Bugs emerges from the hole at the South Pole, he has an inflatable float device on the back of his bathing costume. When Bugs jumps up and into the water, the device has suddenly disappeared.
Continuity mistake: When Bugs dons his top hat and tails and tells the penguin, "I've always wanted a nice long formal vacation", he takes the penguin by his left hand. When the two are walking along in the next shot, Bugs is now holding the penguin in his right hand.