Sampo (Russian: Сампо) is a 1959 Soviet–Finnish fantasy film based loosely on the events depicted in the Finnish national epic Kalevala.

In the United States, it was released in an edited version, The Day the Earth Froze, by American International Pictures as a double feature with Conquered City.

On arrival Louhi demands they complete a simple task each, Lemminkäinen is asked to plow a field of snakes, which he does with the aid of a steel horse made by Ilmarinen.

Then after Louhi's wizards destroy their boat, blaming it on a great fish, Ilmarinen forges another ship from iron.

He sets to work and, after some failed bargaining for another task, and with the aid of the trolls of Pohjola on the bellows and the fire from heaven itself, he forges a beautiful Sampo, which immediately begins to make gold, grain and salt.

Lemminkäinen is upset when he is informed that the people of Kalevala will never be able to reap the benefits of the Sampo and dives into the sea to swim back and recover it.

His boat is wrecked on the ocean surface when Louhi orders that the wind be set free, and the Sampo is destroyed and Lemminkäinen presumed lost.

The people of Kalevala prepare by cutting trees and bringing all precious metals to Ilmarinen to forge the strings.

Lemminkäinen slices the stone door of the mountain open with his sword, releasing the sun to shine over the lands of Kalevala.

[6] Each scene was shot a total of four times (using two cameras), as the film was produced in both Russian and Finnish (with dialogue dubbed afterwards) and in both standard and anamorphic widescreen aspect ratios.