Kwon Sang-woo
"More Than Blue" marked the directorial debut of poet Won Tae-yeon, who also wrote the script. The film was made on a budget of just under US$2 million, with all three of the main cast members investing a portion of their salaries into the production. Lead actor Kwon Sang-woo drew inspiration from his own then-recent marriage, saying, "I think being married enables me to think more deeply about playing melodramatic parts... K braves his circumstances for love, and I thought I might have done the same if I were in his shoes".