Question: Aviation Survival Technician is the challenging job is featured prominently in a film that stars  Kevin Costner, Ashton Kutcher and what actress?
Sentence (from "The Guardian (2006 film)"): The film's title is introduced by a mythic tale: people lost at sea often claim they feel a presence lifting them to the surface, breathing life into their bodies while they are waiting for help to arrive.
Relevant evidence: No