You absolutely should see Planet of the Vampires, it’s great! It’s Italian, and the English dubbing is pretty good. The plot is very similar to Alien, right down to the giant alien skeleton. The ending, though… oh my, it is such a cliche of every sci-fi / horror movie made in the 1950s and 1960s. All that’s missing is the title card, “The End… Or Is It?”
Highly recommended. It’s an enjoyable movie.
