Journey to the Moon.

Set in 1940s England, an odd group of explorers earn the chance to go on an expedition to the Moon along with a reward cash prize. Meanwhile the mines have been closed, and thousands of workers are out of work. Joe (miner) decides to sneak onto the rocket in order to save the mine, but much to his surprise, he lands himself, the explorers, and the moon aliens in grave danger, so it's up to Joe to save the day and the mines.