Continuity mistake: When Tweety exits the cellar, he is not in the backyard but on the street side.
Continuity mistake: When Sylvester and the orange cat are looking at the hole in the ice rink, the size of the hole increases between shots.
Continuity mistake: When the orange cat attempts to escape with Tweety, he is hit in the face by an iron and slides back down the stairs. At this point, you can see the door to the exit is open, but when Tweety escapes a little later on, the door has gone.
Continuity mistake: When Sylvester is banging on the door of his apartment, there is no handle on the door. When his lady opens the door, a handle has appeared, and the door panels change.
Continuity mistake: When Sylvester and the orange cat take Tweety Pie's nest, you can see the outside of the nest is covered in snow. But when the two cats reach the bottom of the pole, the snow has gone.
