hamada began his career as an assistant at tristar and became vice president of production at columbia pictures. in 2007, he joined new line cinema, a division of warner bros., where he served as a production executive for a decade. he oversaw their horror slate of films with dave neustadter, including "the conjuring" series and "it" (2017). he also co-wrote the story for "47 ronin" (2013), a universal pictures film starring keanu reeves.