Train to Busan (2016)
Yeon Sang-ho's 2016 Korean zombie film. The whole movie happens on one train.
Gong Yoo played the father in Train to Busan, a fund manager whose professional detachment the film systematically dismantles across a train journey. Squid Game gave him the recruiter, and he is among the most bankable Korean leads. He completed mandatory military service at the height of his early fame.