Snowpiercer, The Host director Bong Joon-ho‘s first English-language directed film, will open in Korean theaters on August 1, but the film has yet to receive a U.S. release date. We’ve already seen concept art pieces revealing what the world looks like outside of the train, and some pieces that give us an inside look too. Early promotional items from The Weinstein Company suggested that the film could open some time later this summer. But with the first trailer for the film having just debuted, it looks like that tentative release will be pushed back a few more months.

The film takes place on a train that runs around a now icy dystopian earth. Each car presents a social class, the further back you are on that train, the lower the class. The trailer gives us our first hand look at what it is like to live aboard the Snowpiercer. Chris Evans is a resident of one of the lower class cars, and he leads a resistance group that will break through each car until they reach the engine, where darker secrets lie. Jamie Bell, Tilda Swinton, John Hurt, Alison Pill, Ed Harris, Octavia Spencer, Kang-ho Song, and Ko Asung, also star.

Check out the new trailer below.