Answer
Sulli played a noblewoman named Hae Rang in the 2014 South Korean film'The Pirates'. The film is a historical action comedy film directed by Jo Seong-hee and stars Son Ye-jin, Kim Nam-gil, Lee Chung-ah, and Ha Ji-won. It is about a group of pirates who team up with a group of bandits to search for a treasure ship that sank off the coast of Joseon.