Best watched and accepting the meta premise — not as a jump-scare movie, but as slow-burn occult dread.
While the "deadly" aspect is marketing, the film has divided the horror community: Antrum.The.Deadliest.Film.Ever.Made.2018.1080p....
: These provide the backstory of the film's "deadly" festival run in the late 70s and 80s. Best watched and accepting the meta premise —