Knights Must Fall is a 1949 Warner Bros. Merrie Melodies cartoon directed by Friz Freleng. The short was released on July 16, 1949, and stars Bugs Bunny. A spoof of the King Arthur mythology, the title is a pun on the 1937 film Night Must Fall.

Plot

Bugs (as a knave) stands in line with several knights, chewing a carrot. As Bugs finishes eating, he disposes of the carrot in the suit of "Sir Pantsalot of Drop Seat Manor" (a pun on Sir Lancelot), angering Pantsalot. After they exchange glove blows to each other (with Bugs using one of Pantsalot's gauntlets), the two agree to settle their feud with a joust. The joust begins with Pantsalot introduced to great fanfare, and Bugs being booed. Pantsalot beats Bugs back twice, and destroys Bugs' lance on his third attempt with his shield, earning Bugs the derision of the crowd ("Hey! That cast-iron palooka's making a chump outta me!"). Half-time is signaled with the entertainment consisting of a band playing music (used prior in Porky in Wackyland).