The Pentagon's relationship to Hollywood is hardly monolithic, although filmmakers who go native are often refused support, like Francis Coppola with his excellent Apocalypse Now.
Truthdig is hosting an interesting article on the conscription of popular imagination with The Pentagon Goes Hollywood by Nick Turse, author of The Complex: How the Military Invades Our Everyday Lives. The TomDispatch author interview is below.
Unfortunately, this excerpt article makes no mention of Jack Valenti and his infamous support for propaganda injection. Few of us remember which filmmakers volunteered to sprinkle their films with propaganda, even for recent projects after the September 11 attacks. For additional details see The Boston Globe series "Hollywood Goes to War," "Collateral Brain Damage? The Hollywood Propaganda Ministry" at Ratical, Operation Hollywood: How the Pentagon Shapes and Censors the Movies, and "The Manufacture of World Order: The Security Services and the Movie Industry" at Media/Culture Journal.