 According to animator Mark Kausler, Krantz was so nervous about showing too much nudity and sexual activities that he had several versions of some sequences animated, for instance, in the "Maybellene" animation sequence. Kausler says that a sequence was animated in which the viewer sees "the key in the ignition metamorphose into a penis entering Maybelline's vagina." This sequence was deleted from Heavy Traffic, but the same action appeared in the film Down and Dirty Duck. Kausler also states:
