Phantasm (1979)

After the death of his parents, a young boy named Mike discovers a supernatural threat in his town. With the help of his brother Jody and their friend Reggie, they uncover a sinister plot involving a Tall Man who is stealing corpses and turning them into dwarf zombies. As they dig deeper, they encounter deadly orbs and a dimensional portal, leading them to a terrifying confrontation with the Tall Man.