Funny you should mention the military industrial complex: https://en.wikipedia.org/wiki/Military-entertainment_complex

> In Hollywood, many movie productions are directly supervised by the Department of Defense's (DoD's) Film Liason Unit. Directors looking to borrow Army material for their movies need to apply to the DoD, and submit their movies' scripts for vetting. Ultimately, the DoD has a say in virtually every US-made movie that use military resources in their production.