Daffy Duck and Porky Pig Meet the Groovie Goolies is a 1972 animated one-hour TV-movie (with a live-action segment near the end) that was part of The ABC Saturday Superstar Movie. In this Filmation-produced movie, Daffy Duck, Porky Pig, and other Looney Tunes characters interact with the characters from the Filmation series Groovie Goolies.
This movie is notable for being the one and only time that Warner Bros. "loaned out" their famous Looney Tunes characters to appear in a Filmation production (otherwise they were a silent partner). Warner Bros. had shut down their animation studio in 1969. While Warner Bros. had outsourced production to other companies since the 1960s, it was usually to studios run by former Warner Bros. alumni (such as Friz Freleng and later Chuck Jones), something that was not the case with Filmation.
Daffy Duck is in Hollywood producing a movie about King Arthur and the Knights of the Round Table, starring himself; also appearing in the film are Porky Pig, Petunia Pig, Sylvester, Tweety, Wile E. Coyote, Foghorn Leghorn, Pepé Le Pew, Elmer Fudd, Yosemite Sam, and Charlie Dog.