Humongous ratings (Movie, 1982)

Woman is raped at cocktail party. Years later, her son grows up to be a big hairy murderous monster who stalks a group of teens shipwrecked on his island.

The Blue Lagoon
Total votes: 81,381
Average rating: 5.8 A Nightmare on Elm Street 2: Freddy's Revenge
Total votes: 82,941
Average rating: 5.5 Friday the 13th: The Final Chapter
Total votes: 63,996
Average rating: 6.0 Cannibal Holocaust
Total votes: 65,202
Average rating: 5.8 Friday the 13th: Part 3
Total votes: 65,191
Average rating: 5.6 Children of the Corn
Total votes: 60,831
Average rating: 5.6 Halloween III: Season of the Witch
Total votes: 65,059
Average rating: 5.2 Friday the 13th: A New Beginning
Total votes: 47,565
Average rating: 4.8 All the Right Moves
Total votes: 21,616
Average rating: 6.0 The Final Conflict
Total votes: 25,030
Average rating: 5.5