Humongous (1982)

The monstrous offspring of a violent crime grows up in seclusion on a remote island, where a boatful of hapless teens have shipwrecked, unaware of what's lurking in the woods.

Directed by: Paul Lynch

Starring: Janet Julian, David Wallace, John Wildman, Janit Baldwin, Joy Boushel, Layne Coleman

Links: IMDb, Movie posters, Movie stills