Snowpiercer is an adaptation of the French graphic novel Le Transperceneige, directed by the South Korean Bong Joon-ho and with a multi-cultural cast and special effects created by studios all around the world, making it an international film which isn't subject to the narrative laws of a specific region; in other words, it doesn't feel like a Hollywood action film, or an European art-house film, or an Asian multi-genre pastiche. Every spectator will have to decided whether that thematic confusion is good or bad. I think it's definitely good, because Snowpiercer works brilliantly in all those styles: there's abundant and exciting action during the literal class struggle on board of a train; the dramatic moments are very well executed as an integral part of the story; and there's also an eccentric sense of humor which provides a comic relief during the most tense moments of the story. Besides, Chris Evans brings a perfect performance in the leading role, bringing conviction, charisma and presence to his character. Song Kang-ho also brings an excellent work as Nam, an acid and laconic expert in security who reluctantly accept to help the revolutionaries in exchange of a constant drugs supply. On the negative side, Snowpiercer includes a few kinda improbable elements, but for the rest, I liked this film very much, and I definitely recommend it as a film difficult to classify but easy to enjoy.