First appearance of Foghorn Leghorn.

Foghorn Leghorn was closely based on Senator Claghorn, a character on ‘The Fred Allen Show’, whose trademark lines included, "Somebody, Ah say, somebody knocked," "That's a joke, son," and "Pay attention, boy!"

First appearance of the Barnyard Dog (whose unspoken real name, according to the model sheets, is George P. Dog).

"So round, so firm, so fully packed" was the advertising slogan of Lucky Strike Cigarettes.

Foghorn's line "Open the window, Richard!" is a reference to saxophonist Jack McVea's 1947 hit song, "Open the Door, Richard."

The film is mostly notable for being an Academy Award for Animated Short Film Nominee, losing to MGM's Tom & Jerry cartoon The Cat Concerto, which shared one of 7 oscars for the cat and mouse team.

Leghorn's imitation of a whinnying horse, effected by pressing a finger against the side of his nose and creating the nasal sound, mimics the technique Mel Blanc actually used to make the sound.