The opening credits are done twice, followed by the MGM lion opening his mouth to Auberjonois' voice saying, "I forgot the opening line". The opening credits are superimposed over Daphne Heap (Margaret Hamilton) rehearsing "The Star-Spangled Banner" with a marching band in the Astrodome. She stops the song and accuses the band of being on the wrong key. The band begins again, and the credits also start over, with the same titles repeated with the "better" version of the song. One of the opening credits reads: "Title song by Francis Scott Key"