The film "Sleep," starring the late Lee Sun-kyun, won the grand prize at the Gerardme International Fantastic Film Festival in France, AFP reported.

The movie is a mystery thriller about a husband's strange behavior and what happens when he starts doing strange things in the middle of the night.

Marking its 31st anniversary, the Gerardme Film Festival is an international film festival that mainly deals with sci-fi, horror, and fantasy genres.