Trivia: When the animators where drawing Lucifer the cat they just couldn't get it right. Then when Walt Disney saw the animator Ward Kimball's cat, a furry calico, he declared "There's your Lucifer."
Trivia: Bugs' line of "Eh, next!" at the very end of the cartoon is the only spoken line of dialogue. The rest of both his and Elmer Fudd's lines are all sung.
Trivia: After Sylvester has swallowed the bowling ball, he goes back down the drainpipe and out into the street. When this happens, look behind him and you can see a sign saying "Drink Friz! Six Delicious Flavors" - a reference to the director Friz Freleng. There is also a building with "Champin's 5 and 10" on it - a reference to the animator Ken Champin.
Trivia: When Sylvester slides down into the bulldog, who punches him and sends Sylvester into the wall, look in the background and you can see a chest with a label saying "From Friz Freleng, Pratt Falls." Friz Freleng is the director of this cartoon, whereas "Pratt Falls" is a reference to the Warner Brothers layout artist Hawley Pratt.
Trivia: Mel Blanc, not Arthur Q. Bryan, voices Elmer Fudd's brief appearance.
Trivia: When Jerry phones the club and informs Mammy Two-Shoes about the party, she runs back home. You can see Mammy Two-Shoes' face for about two frames as she runs back to the house.
Trivia: When Prissy arrives at the grocery store to see if her egg has been delivered there, there is "Foster's Fresh Eggs" on the window - a reference to the Warner Brothers story writer Warren Foster.