There is a movie Star Chaser.

They have people living in mines tunneling down as slaves for multiple generations and they are told that tunneling up will bring them to Hell to keep them afraid to tunnel up and escape

One of them tunnels up and finds they are on the surface of a planet

Tim Ozman

revealed Lone Skum

Elon Musk is a character played by an actor and not a real person

He will trick people into thinking they are living underground in mars but they will be digging tunnels in earth