Phantasm (1979)

Ahh, yes. The movie that gave us evil jawa slaves from a high gravity planet, created by & overseen by a Tall Man in a mortuary. This one taught us how to break out of locked rooms in a few easy steps using tape, push pins, shotgun shells, & hammers. It also gave us good reasons to really, really fear silver christmas tree balls. To this day, you ain’t gonna find any silver balls on my tree.