“It’s not just an ad; it’s the first notes of the piece. It’s the beginning of the story.” That’s Michael J. Fox speaking about Drew Struzan‘s work and giving movie marketers everywhere a much-needed lesson. It’s not about slapping some poorly Photoshopped celebrity faces against a white space with a bad font; it’s about creating an indelible image that instantly makes someone want to see the movie. It’s imagery selling imagery. Now, the legendary artist is now the subject of a documentary from director Erik Sharkey, and that documentary has a trailer. Drew: The Man Behind the Poster features interviews with Guillermo Del Toro, Fox, Frank Darabont, Harrison Ford, Steven Spielberg, George Lucas, Tom Jane, and a bunch of other artists (including Stuzan himself). It’s a celebration of a master.