Norman becomes belligerent backstage, particularly oward his pushy, mean-spirited studio publicist Matt Libby (Jack Carson), insulting him:I don""t need any more pictures, I don""t need any more interviews, because the public loves me.This was the first film without the deceased Donald Pleasence, who had appeared in all of the previous Halloween films (except the third one).He then joined his fellow agents and the captain, who parachuted out of a trap door in the belly of the plane moments before it crashed into a snowy Rocky Mountain peak.He finally was able to apprehend the driver Sytsevich and constrained him in a web-straitjacket, and then grabbed the last of the vials before strolling away.The survivors were further pursued by another predatoryTyrannosaurus Rexthat was distracted in its battle with theSpinosaurus.