A 1970s film about 2 mercenaries trying to protect a ship that has a machine that can control people's minds! This sounds riffable, it even has Santa from Space Mutiny in it!

The film is also known as Control Factor

https://en.wikipedia.org/wiki/The_Big_Game_(1973_film)

https://www.imdb.com/title/tt0068274/

Have yet to find a trailer (I can only find a trailer for a Samuel L. Jackson film of the same name which is on here already)