For influences, they studied scores of popular action and disaster films, such as Alien, Top Gun, and S.W.A.T. The duo watched Pearl Harbor to get the nuances of the puppets just right when they were staring at each other, and also used Ben Affleck as a model. To help shape the film's archetypal heroes (from the true believer to the reluctant hero to the guy who sells out his friends for greater glory), they read the books of Joseph Campbell.
Ben Affleck
Joseph Campbell