James Gunn DC Entertainment James Gunn Has Had Opportunities To Make DC Films Director James Gunn has risen to become one of Marvel preeminent directors. Coming from a mostly horror and comedy background, Gunn hit it big with 2014?s Guardians of the Galaxy, turning into a superstar director almost overnight. Despite early misgivings about Guardians and its place in the larger MCU, Gunn crafted a fun adventure film that many believe to be one of the strongest examples of what the Marvel brand can offer.