("Richard Riley" wrote)
There's "Quatermass and the Pit" from 1967, which was released in the
US as "Five Million Years to Earth" and "The Mind Benders"
http://www.imdb.com/title/tt0062168/

But there's also "20 Million Miles to Earth" from 1957. Totally
different movie. http://www.imdb.com/title/tt0050084/


One Million Years (B)efore (C)ertification


Montblack
You can look at the movie poster, but no touching.