Revealing mistake: When Bugs Bunny is walking away from Elmer Fudd, you can see a futuristic building in the background that keeps disappearing repeatedly when it reaches the end of the frame.
Continuity mistake: When Porky and Daffy wake up the next morning, the alarm clock on their chest of drawers initially reads 6.00 but in the next shot changes to 10.55.
Continuity mistake: When Bugs is conducting the orchestra at the end of the short, the stand in front of him is black but changes to brown in the next shot.
Continuity mistake: When the dog is sniffing Bugs Bunny, you can see that Bugs has his right hand on the tree while he is eating a carrot, but when we see a close up of the dog in the next shot, Bugs' hand has disappeared.
Continuity mistake: When Daffy says to Porky, "Did you lose something, Fat Stuff?" the number of trees in the background decreases between shots.
Continuity mistake: When Granny is speaking to Sylvester at the start of the cartoon, you can see there is nothing is under Sylvester. In the next shot, a green pillow appears, and in the shot after that, it has disappeared.
Continuity mistake: At the flight station, when the captain addresses his men and says, "That's 28 men and 28 tries," the captain's ribbons, medals, and cap change colors. (00:03:15)
Continuity mistake: When Spike is captured by the dog catcher at the end of the cartoon, you can see that there is a padlock on the door of the van, but when Jerry is chasing the van in the next shot, the padlock has disappeared.
Continuity mistake: The book Sniffles is reading is coloured green in long shots, yet in close ups it is yellow.