His parents were killed in a car accident. His fiancée was murdered in a rare case of beach terrorism. Thusly, in American Assassin, the kid from Maze Runner is out to KILL ALL THE TERRORISTS. And you can tell he means it, because this is a guy who takes his smartphone into the ocean. That’s some brass-balled shit. Dylan O’Brien stars, with Michael Keaton playing the special ops mentor that appreciates his gusto and teaches him to be better at murdering. The film hits theaters September 15.