Snowpiercer (2013)

In a failed climate change experiment, all life on Earth is extinguished, except for the survivors aboard the Snowpiercer, a train that travels around the globe. The survivors are divided into a new class system, with the elites residing in the front cars and the lower class living in squalid conditions at the tail. Curtis Everett leads a rebellion from the tail to the front of the train, fighting against the oppressive system and discovering the dark secrets of the train's creator. The rebellion culminates in an explosive battle that derails the train, allowing the survivors to see the existence of life outside.