With spies continuing to be a relatively bankable subject in Hollywood these days, we’ve got yet another successful literary spy about to make the jump to the big screen. Mitch Rapp is the star of a series of best-selling books by Vince Flynn, a fictional CIA agent seemingly cut from the same cloth as characters like Jason Bourne, Jack Ryan and Jack Bauer. CBS Films is adapting the 11th book in the series, a prequel of sorts that explains how Rapp joined the CIA (no unlike the recent Jack Ryan: Shadow Recruit). The Maze Runner star Dylan O’Brien is playing the young Rapp and they are obviously hoping he can grow with the franchise… that is, assuming it is successful enough to spawn a few sequels. American Assassin is directed by Michael Cuesta (Kill the Messenger, Homeland) and co-stars Michael Keaton, Sanaa Lathan and Taylor Kitsch. The movie hits theatres on Sept. 15th; check out the trailer after the jump and see what you think.