- The Danza: Kim Su-an's character's name is also Su-an.
- Dawson Casting: Choi Woo-Sik and Ahn So-hee were in their twenties while playing a high school-aged couple.
- Market-Based Title: The film was released as Dernier train pour Busan (Last Train for Busan) in France. Also marketed as Zombie Express in Poland in a probable case of Viewers are Morons
Trivia / Train to Busan