Don't Knock the Rock is a 1956 American musical film starring Alan Dale and Alan Freed. Directed by Fred F. Sears, the film also features performances by Bill Haley & His Comets (who were top-billed), Little Richard, The Treniers, and Dave Appell and the Applejacks.

In contrast to the title track of Haley's previous film, Rock Around the Clock, the title track of this film was specially written for it (screenwriter Robert E. Kent is credited as co-writer of the song). A Haley recording of the song is played over the opening credits, but it is Alan Dale who performs the number in the film. Indeed, while Haley and his band are the top-billed performers in the movie, the story in fact focuses on Dale's character.