some scenes used documentary recordings which were made by bakshi and edited to fit the scene; these were used because bakshi wanted the film to "feel real". according to bakshi, "i made tons and tons of tapes.  ... when i went to have the film mixed, the sound engineers gave me all kinds of crap about the tracks not being professionally recorded; they didn't even want to mix the noise of bottles breaking in the background, street noise, tape hiss, all kinds of shit. they said it was unprofessional, but i didn't care." although the sound designers insisted that bakshi needed to re-record the dialogue in the studio, bakshi persisted on their inclusion.