Underground caves do exist on the Moon, radar observations confirm

Or the game Descent. Although that already took place in space.

Okay I haven't seen that movie, so I was confused cause I could have sworn you visited many moons in the first Descent game.

So many movies to redo.

The Cave...On the Moon

Cave of Forgotten Dreams...On the Moon

The Clan of the Moon Cave Bear

Or Dig, which was on an asteroid that became Earth’s second moon.

The Notebook, but it's on the moon.