Chris Miles were responsible for animation cleanup. George Dunning, who also worked on the Beatles cartoon series, was the overall director for the film, supervising over 200 artists for 11 months. "Lucy in the Sky with Diamonds" was Dunning's idea, which he turned over to Bill Sewell, who delivered more than thirty minutes of rotoscoped images. By that time, Dunning was unavailable, and Bob Balser, with the help of Arne Gustafson, edited the material to its sequence length in the film. The animation design of Yellow Submarine has sometimes been incorrectly attributed to famous psychedelic pop art artist of the era Peter Max, as his art style greatly resembles the style used in the film, but the film's art director was in fact Heinz Edelmann. Edelmann, along with such contemporaries as Milton Glaser and Seymour Chwast, pioneered the psychedelic style for which Max would later become famous, but according to Edelmann and producer Al Brodax, as quoted in the book Inside the Yellow Submarine by Hieronimus and Cortner, Max had nothing to do with the production of Yellow Submarine. Edelmann's surreal visual style contrasts greatly with the efforts of Walt Disney Animation Studios and other animated Hollywood films that had been previously released at the time (a fact noted by Pauline Kael in her positive review of the film). The film uses a style of limited animation. It also paved the way for Terry Gilliam's animations for Do Not Adjust Your Set and Monty Python's Flying Circus (particularly the Eleanor Rigby sequence), as well as the Schoolhouse Rock vignettes for ABC and similar-looking animation in early seasons of Sesame Street and The Electric Company. (Only one of the animation staff of Yellow Submarine, Ron Campbell, contributed subsequent animation to Children's Television Workshop). Music In addition to the 1966 title song "Yellow Submarine", several complete or excerpted songs, four previously unreleased, were used in the film. The songs included "All Together Now", "Eleanor Rigby", "It's All Too Much", "Baby, You're a Rich Man" (which had first appeared as the B-side to "All You Need Is Love" in June 1967), "Only a Northern Song" (originally recorded during sessions for Sgt. Pepper's Lonely Hearts Club Band) and "Hey Bulldog". Written by Lennon, this last track was cut from the film before it opened in the US. "Hey Bulldog" was restored for the US theatrical and home video reissue in 1999. The four new