Knight-mare Hare

Knight-mare Hare is a 1955 Warner Bros. Merrie Melodies theatrical cartoon directed by Chuck Jones and written by Tedd Pierce. The short was released on October 1, 1955, and stars Bugs Bunny.

Plot
Bugs Bunny is reading a book about the Knights of the Round Table when an apple falls and hits him on the head; it transports him back to the time of King Arthur. When he wakes up he encounters a knight named Sir O of Kay, Earl of Watercress, who challenges him to a joust. Bugs trips the knight's horse, sending him flying into a castle tower.

Pursued by a fire-breathing dragon, Bugs defeats the creature with seltzer. Seeking refuge in another castle, Bugs encounters Merlin of Monroe, a supposed sorcerer. Merlin attempts to use "magic powder" to transform Bugs into a pig, but Bugs turns the tables on Merlin by transforming him into a horse. To return to the present, Bugs tosses an apple to hit himself on the head. Successfully returning to his own time, Bugs encounters a farmer with a plowhorse resembling Merlin's transformed state. Dismissing the resemblance, Bugs continues on, only to be surprised when the farmer addresses the horse as "Merlin".

Home media
The cartoon is available on the Looney Tunes Golden Collection: Volume 4 DVD box set.