Continuity mistake: When Sylvester produces a piece of bubble gum, the writing on the wrapper in long shots says "Gum", but in close-ups it reads "Bubble Gum".
Continuity mistake: When Sylvester is holding the string after setting the trap to capture Tweety, the background behind him changes from trees to blue sky between shots.
Continuity mistake: When Sylvester is dressed up as a tree, you can see the background behind the branch on which he is holding a nest is a bridge, but in the next shot it changes to trees.
Continuity mistake: When Sylvester (dressed as a baby) rides up to the bench on his bike wagon, the shadow behind the bench changes from big to small between shots.
Continuity mistake: When Sylvester crawls up on the ground to try and catch Tweety, there is a sign saying "Please use cans for rubbish" and a fountain behind him that he passes twice.
Continuity mistake: When the nanny tells off Sylvester for chasing Tweety, the handle on her umbrella changes position between shots.
Continuity mistake: When the nanny hits Sylvester on the head with the handle of her umbrella, there is a bench in the background that disappears in the next shot.
Continuity mistake: When we see Tweety bathing himself in the park birdbath at the start of the cartoon, you can see there is nothing behind him, but when we a close-up of Tweety singing in the next shot, a tree has suddenly appeared.
Continuity mistake: When we see Sylvester reading his newspaper at the start of the cartoon, you can see the front page has only one picture on the cover, but when we see a close-up of the picture in the next shot, another picture has appeared under it.
