I got this dvd last week called Contamination from director Luigi Cozzi that came out in 1980 and stars Ian McCulloch(from Zombie)
I watched it the other night and it's not that bad of an alien on earth type of film. The alien cyclops at the end wasn't too corny looking lol.
The film is about alien egg pods from Mars that are being distributed throughout the world to destroy it by a former astronaut who was on a Mars expedition and possessed by an alien.
The film has some cheesy and corny characters in it but I rather enjoyed it.
Cool film to drink a few beers too!