It! The Terror from Beyond Space (1958) Spaceship has an unwanted passenger. May have inspired Alien, but fun enough on its on merits even it didn't. TIL: Pope Francis says to welcome the stranger is to welcome Christ. I'm sure this assumes the stranger is not trying to eat you.
Dad Rock Diary: The Yardbirds - Roger The Engineer (1966) Psychedelic blues pastiche is kind of all over the place, but each place it goes is pretty dang good, so who cares. Laudable Lyrics: Ever since the world began, Satan's followed every man, trapping evil if he can.