should always be touching something real." After the rough animation was complete, it was run through the normal process of traditional animation until the cels were shot on the rostrum camera with no background. Williams came up with the idea of making the cartoon characters “2.5-dimensional”, and the animated footage was sent to ILM for compositing, where technicians animated three lighting layers (shadows, highlights, and tone mattes) separately, to give the characters a sense of depth and create the illusion of them affected by the set lighting.. Finally, the lighting effects were optically composited on to the cartoon characters, who were, in turn, composited into the live-action footage. One of the most difficult effects in the film was Jessica's dress in the nightclub scene because it had to flash sequins, an effect accomplished by filtering light through a plastic bag scratched with steel wool. Music Regular Zemeckis collaborator Alan Silvestri composed the film score, performed by the London Symphony Orchestra (LSO) under the direction of Silvestri. Zemeckis joked that "the British [musicians] could not keep up with Silvestri's jazz tempo". The performances of the music themes written for Jessica Rabbit were entirely improvised by the LSO. The work of American composer Carl Stalling heavily influenced Silvestri's work on Who Framed Roger Rabbit. The film's soundtrack was originally released by Buena Vista Records on June 22, 1988, and reissued on CD on April 16, 2002. On January 23, 2018, Intrada Records released a three-CD set with the complete score, alternates, and a remastered version of the original 1988 album, plus music from three Roger Rabbit short films, composed and conducted by Bruce Broughton and James Horner. Mondo Records and Walt Disney Records reissued the original 1998 album on vinyl on September 17, 2021. The film features performances of "Hungarian Rhapsody" (Tony Anselmo and Mel Blanc), "Why Don't You Do Right?" (Amy Irving), "The Merry-Go-Round Broke Down" (Charles Fleischer), and "Smile, Darn Ya, Smile!" (Toon Chorus). Release Michael Eisner, then-CEO, and Roy E. Disney who was the vice chairman of The Walt Disney Company, felt the film was too risqué with adult themes and sexual references. Eisner and Zemeckis disagreed over various elements of it but since Zemeckis had final cut privilege, he refused to make alterations. Roy E. Disney, head of Feature Animation along with studio chief Jeffrey Katzenberg, felt it was appropriate to release the film under the studio's adult-orientated