The mystery "Train to Busan" has been sold in 156 countries round the globe.
Since its screening at the Cannes Movie Festival in May, investors from countries adding Canada, China, France and the U.S. have snapped up the theatrical rights for the film.
Global pre-sales of the film have up to now grossed over US$2.5 million.
Directed via Yeon Sang-ho, the film portrays a train ride with a collection of zombies that lifta dangerous virus.
"Train to Busan" will pass on free up here on July 20, and in the U.S. in July and in France in August.