One of the girls was afraid of sharks and when she was in the water they threw her a rubber fish; she got hysterical, grabbed the fish and bit its head off. He said that people did not understand the film and its new sequences when first cut together so he added narration. He decided one of the astronauts, "the best looking one", should narrate the film. Bogdanovich wrote the narration and provided the voice; it was the one credit he took on the film.