Trivia: The mine that the Coyote comes out on his rocket has a sign outside saying "Selzer Mining Co" - a reference to the Warner Brothers producer Eddie Selzer.
Trivia: When Stan and Oliver are working with the road gang, Stan nicks Oliver in the rear with his pickaxe. The pickaxe that Stan Laurel was using was a real one and Oliver Hardy received a nasty cut to his rear.
Trivia: At the beginning of the cartoon, we see Donald wearing an army hat instead of his usual sailor hat. This would be repeated in the other army-themed Donald Duck cartoons.
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: "A Wild Hare" is considered by many historians as the first "official" Bugs Bunny cartoon.
Trivia: The final Warner Brothers cartoon to feature the concentric rings in the opening and closing titles.
Trivia: As the gangsters speed by in their red car, you can see a billboard along the road advertising "Hotel Friz" - a reference to the director Friz Freleng.
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: Mel Blanc, not Arthur Q. Bryan, voices Elmer Fudd's brief appearance.
Trivia: When Sleepy Lagoon is licking his lollipop towards the end of the cartoon, look at the wall and you can see a picture of the Warner Brothers animator and director Friz Freleng.
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.
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: "Pecos Pest" was the final Tom and Jerry cartoon produced by Fred Quimby before he went into retirement. From the next short, "That's My Mommy", until "Tot Watchers", all subsequent Tom and Jerry cartoons at MGM were produced and directed by William Hanna and Joseph Barbera.
Trivia: The first Warner Brothers cartoon in which Bugs Bunny "should have taken that left turn at Albuquerque."
Trivia: Casper the Caveman is a caricature of the American comedian Jack Benny.