In 2012, Yoo directed his first feature film "Mai Ratima", based on a synopsis he wrote 15 years ago in college. It portrays the unlikely love affair of a Korean man in his 30s living on the bottom rung of society and a mail-order bride from Thailand in her 20s. Shooting began in Gyeonggi Province on January 26, 2012, and it premiered at the Busan International Film Festival on October 5, 2012. Yoo said he plans to continue producing or directing movies based on strong social issues as he is interested in the plight of the less privileged. "Mai Ratima" won the Jury Prize at the 2013 Deauville Asian Film Festival.