Capricorn One's premise is that NASA fakes a mission to Mars then tries to kill to astronauts. You can imagine why I dislike that movie.

As for the other movies... It'd take too long to explain what they're about, but I highly recommend First Men in the Moon. It's based on HG Wells's novel of the same title, where Victorians use antigravity to fly to the Moon, where they encounter a hive society of intelligent insects living under the surface.

And if you STILL want details about the other movies, well, we WILL meet at the worldcon, right?