SiFi movie of the 50's believe 1 of the stars was Richard Carlson . Story line I remember well > goes like this . Space ship goes off course , crash lands
on earth yrs ahead of time or it may have been mars but anyway way into the future . dewellers above hedious cave like men/women. They find way to undergound civilization more advanced but docile & weak ( men at least ) .
The space crew tries to organize group to retake the land . Build guns & rocket launcher . have problems with one jealous councile member. Win
right to persue the task & Richard Carlson fights the one ey