Bad Ol' Putty Tat (1949)

Continuity mistake: When Tweety is running away from Sylvester, he hides in a tube of "Badminton Birds." When Sylvester comes around the corner, you can see there is a racquet next to the tube, but when we see Tweety coming out of the tube in the next shot, the racquet has disappeared.

Continuity mistake: When Tweety hits Sylvester with a baseball bat while he is bouncing on the trampoline, you can see that Sylvester is positioned face down but when he lands on the trampoline in the next shot, he is now lying up.

Continuity mistake: At the beginning of the cartoon there is a "Do Not Disturb" sign outside Tweety's house, but when Sylvester is bouncing on the trampoline to get into the birdhouse, the sign has disappeared.

Trivia: When Tweety is lighting the fuse on the rocket, there is a crate behind him with a label saying "Friz" on the side of it - a reference to the director Friz Freleng.

Trivia: During the tennis game, Sylvester swallows a stick of dynamite and then attempts to put it out by drinking from a water tank - only to blow himself into the tank. The same thing would later occur to Elmer Fudd in a 1953 Warner Brothers cartoon, "Ant Pasted."