I was a kid in the 80s and this movie was very creepy to me. Years later I'm 38. I want to watch it again because it was good from my memory, but it kind of scarred me as a child. I feel from what I remember as a child this movie would be best for children over the age of 10 or 11. It's very evil. I remember it vividly and my parents said they don't even remember letting me watch it. Google "watcher in the woods trailer 1980."
I can't wait to watch it as an adult, but parents beware, this movie could be scary for your child.