First appearance of Yosemite Sam, whose prototype, Red Hot Ryder, opposed Bugs eight months earlier in Buckaroo Bugs (1944).
The first Warner Bros. cartoon to feature full credits (for story, animation, layouts, backgrounds, effects animation, film editing, voice characterization, and music, followed by the director credit on a separate screen).
Bread and butter" is a superstitious blessing or charm, typically said by young couples or friends walking together when they are forced to separate by an obstacle, such as a pole or another person..While two opposite trains pass early in the film separated by poles, this phrase is repeated.
A sound clip of Bugs Bunny's line, "So long, Screwy! See you in St. Louie!" is heard at the end of each episode of Svengoolie (1995).
Character actor Edward Everett Horton is mentioned.