Snowpiercer

The movie begins in the year 2014, with an Experiment that has been performed for global Warming through Climate engineering has been failed badly and the effects of which are inadvertently causing an Ice age to destroy all the life. But, in such a life threatening situation where many of them lost their lives, there are some of the survivors who are the inhabitants of Snowpiercer, which is a very big train that travels all across the globe and it is powered by a perpetual motion engine which has been invented by Wilford.

But by reaching 2031, things drastically change in the train. The elite passengers are allowed to live in the front cars and they are provided with everything they require but the poor people inhabit the tail and live in very brutal conditions. These conditions ignite the passengers in the tail and they decide to revolt which results in destruction.
In a future where a failed global-warming experiment kills off most life on the planet, a class system evolves aboard the Snowpiercer, a train that travels around the globe via a perpetual-motion engine.