Movies like snow bound

The Donner Party, sometimes called the Donner–Reed Party, was a group of American pioneers who migrated to California in a wagon train from the Midwest. Delayed by a multitude of mishaps, they spent the winter of 1846–1847 snowbound in the Sierra Nevada mountain range. Some of the migrants resorted to cannibalism to survive, eating the bodies of those who had succumbed to starvation, sickness, and extreme cold.