 When the producers tried to buy the rights of Frank Zappa (qv)s  "Watermelon in Easter Hay" they were told by Zappas family that  Zappa requested that three of his songs were never played in any  media except the album where they appear and that song was one of  them. Gail Zappa (qv), Franks widow, saw the movie when editing  was almost completed and agreed to make an exception because she  considered that Zappa would be proud of the movie.