SNOWPIERCER

In 2014, Global Warming is at it's highest. A group of scientists create a cooling agent dubbed CW-7. 79 countries launch aircraft around the world and release the agent, only for the plan to backfire. Th agent has caused more bad than good, freezing the earth. Wilford, owner of Wilford Industries, repurposes his luxury train liner into a 'Rattling Ark', now made to house the remaining humans. With 1,001 cars the train will survive the eternal winter, and is dubbed;
SNOWPIERCER.
You get on the train and it departs, you know this train will be your life from now on.
You have to find your location in which you will stay for the rest of your life.