TAHNKYOU GUYS SO MUCH FOR HELPING ME IDENTIFY THE 1ST AND 3RD MOVIES! Bless you! I have looked forever! THANKS A MILLION! :) :) :) :) :)

Now if we could only figure out the 2nd one! I remember it had a picture of an alien face on the front, the film was very dark and mysterious like...and I don't think it showed the monster very much...only dark shadows...and I seem to remember a woman crawling on her back and screaming as this guy is walking towards her. Ring any bells!