Question: What event happens during the 2016 movie that is directed by Yeon Sang-ho and stars Gong Yoo?
Sentence (from "Train to Busan"): Train to Busan () is a 2016 South Korean zombie apocalypse action thriller film directed by Yeon Sang-ho and starring Gong Yoo, Jung Yu-mi, and Ma Dong-seok.
Relevant evidence: Yes