In 2014, Park played a company rep trying to recruit college students in "Neighbors." He had previously worked with the director, Nicholas Stoller, on "The Five-Year Engagement" (2012). Stoller later recommended Park for the role of "a vague North Korean dictator," who later turned out to be North Korean leader Kim Jong-un, in the controversial film, "The Interview", directed by Evan Goldberg and Seth Rogen. Impressed by his audition, Goldberg and Rogen offered Park the role after one audition. Park gained over 20 pounds for the role. For reference material on the role, he used Forest Whitaker's performance in "The Last King of Scotland" and the Vice documentary on North Korea.