Nivola believes that the Pteranodon attack was initially meant to be Billy's last appearance in the film, resulting in his character's death. He speculated that his character was brought back at the end of the film because of younger audiences' potential reactions. Nivola criticized the film in 2002: "It was like the only part I've ever done that just had nothing for me to latch on to, character-wise. [...] It was kind of maddening".
