Phantasm

Newly orphaned teenager Mike Pearson, his older brother Jody, and their friends face off against a mysterious grave robber known as the Tall Man, who employs a lethal arsenal of unearthly weapons in their southern California town.

Phantasm is a 1979 horror sci-fi movie directed by Don Coscarelli, starring A. Michael Baldwin, Reggie Bannister, Kathy Lester. It holds an IMDb rating of 6.6/10 from 45,007 votes and runs 1h 29m.