Trivia: This is the first Warner Brothers cartoon to use a shorter version of the "Merrily We Roll Along" music, and the first to credit all of the animators and use a "Direction" credit.
Trivia: First appearance of Yosemite Sam in a Warner Brothers cartoon.
Continuity mistake: When Bugs Bunny is speaking to Yosemite Sam in the mail car of the train, the green wall behind Bugs keeps changing between shots.
Yosemite Sam: Be you the mean hombre that's a-hankerin' for a heap of trouble, stranger? Well, be ya?
Bugs Bunny: I be.