The thriller "Train to Busan" has been sold in 156 countries around the globe.
Since its screening at the Cannes Film Festival in May, investors from countries including Canada, China, France and the U.S. have snapped up the theatrical rights for the film.
Global pre-sales of the movie have so far grossed over US$2.5 million.
Directed by Yeon Sang-ho, the film portrays a train ride with a group of zombies that carry a deadly virus.
"Train to Busan" will go on release here on July 20, and in the U.S. in July and in France in August.