Trivia: When Claude Cat flies up above the elevated train tracks, there is a sign in the background saying "Don Foster for Mayor." Foster was an artist who designed many of the lobby cards for Warner Brothers.
Trivia: The "Instant Girl" jar that Daffy Duck picks up towards the end of the cartoon credits the "Pierce Packing Co." This is a reference to Tedd Pierce, the writer of this cartoon.
Trivia: This was the first Warner Brothers cartoon in which Bugs Bunny was named.
Trivia: The billboard that displays the cartoon's title at the start has "Selzer Sign Service" on the top of it - a reference to the Warner Brothers producer, Eddie Selzer.
Trivia: There is no dialogue in the short, apart from a mutual "Gesundheit!" at the very end.
Trivia: The "Evil Scientist" in this cartoon is a caricature of the actor Peter Lorre.
Trivia: This was the first Tom and Jerry cartoon to be released in CinemaScope, as well as the first not to have Mammy Two-Shoes as the owner of the house.
Trivia: At the beginning of the cartoon, we see a long line of books at the book shop. The last book we see is entitled "Life and Times" by Bugs Bunny.
Trivia: When we see Bugs Bunny for the first time, behind him on the ballpark fence there is a picture of a man with a gun and a detective hat with the words "Mike Maltese, Ace Dick" written nearby. Michael Maltese was the writer for this cartoon.
Trivia: The box that holds all the captured chess pieces shows Pixar Studios' old address, or the address they had at the time of this film.
Trivia: The final Tom and Jerry theatrical cartoon produced or directed by William Hanna and Joseph Barbera.
Trivia: This was the first non-Disney film to win the Academy Award for Best Animated Short Film.
Trivia: The first of 37 cartoons produced for Warner Brothers by the newly formed DePatie-Freleng Enterprises (producer David H. DePatie and director Friz Freleng). The studio became best known for creating The Pink Panther.
Trivia: When we see a cat looking through the dustbins at the beginning of the cartoon, there is a newspaper on the ground that has "Foster" on the front page - a reference to the Warner Brothers story writer Warren Foster.
Trivia: This was the last appearance of Mammy Two-Shoes in a Tom and Jerry cartoon.
Trivia: When Elmer Fudd shouts "Smog!" whilst summoning the various forces of nature, he is voiced by Mel Blanc, not Arthur Q. Bryan. Blanc was chosen to do this line as his scream was considered to be better than Bryan's.
Trivia: The only Bugs Bunny cartoon to win an Academy Award.