Pirates aren't generally spooky, but the very first Pirates movie is a terrifying masterpiece. Jack Sparrow and Will Turner join forces to rescue the fair maiden Elizabeth and retrieve Jack's ship — where people turn into creepy skeletons under the moonlight due to a curse.
Watch Pirates of the Caribbean: The Curse of the Black Pearl on Disney+. (You can catch Dead Man's Chest, At World's End, and Dead Men Tell No Tales on Disney+ as well.)