The Most Memorable FAMOUS MONSTERS Cover!!!

Of all of Famous Monsters covers, that I remember growing up, This was the most memorable of them all. Unfortunately This was close to the end, when I gave up FM. By this time, It seemed to become a mostly Sci-Fi Magazine with lots of Star Wars and Close Encounters Covers. By chance, can anyone guess what movie, this picture is from? A couple of clues: 1.) It was released by American International Pictures. and 2.) The Special Make Up Effects were done by Rick Baker. Unfortunately, This movie is not available on Region 1 DVD. A crying shame!!!