 Actor Sam Neill, who portrayed Dr. Alan Grant in two previous films in the series, said he could not imagine a way for his character to be involved in another film.Neill was contracted for three films; other actors from "Jurassic Park III" were also contracted for a potential fourth film.In April 2002, it was reported that the fourth "Jurassic Park" film would be the last in the series and that it would ignore events portrayed in its predecessor.