When Kwon Oh flew to NY from Seoul to make HERO, there was no single crew in the production except the director. She met her 1st assistant director, Darian Brenner at 30films under 30 film fest in NY for the first time, convinced her to work for the production of HERO. Starting the preproduction by only two of them, 2 months later they successfully finished the shooting with more than 50 crews and talents together.