The thing that sets this poster apart is its generic-ness. Its design doesn't stand out, and I'm thinking this might be on purpose. There's such a pointed run-of-the-mill 70s feel it's just so, and carefully so. As if the poster is trying to be 'nothing special', not that noticeable, regular and not worthy of special commentary or consideration, which would be thematic, yes?
I like the tagline which is both a tad hokey (but in a good way) and serious: The movie was fake. The mission was real.
A nice first outing.