Guardians of the Galaxy vol. 2 is currently tearing up the overseas box office, and is getting ready to open massively big in the US market, as well. Case in point: the team over at The Poster Posse has once again put their creative talents to use creating some inspired unofficial promo materials. In fact, this Guardians of the Galaxy vol. 2 poster is so well done, that director James Gunn himself endorsed it publicly!