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Imbuing everyone’s favorite mythical horned horse with bloodlust is such a ready-to-rock concept that it keeps your grindhouse hopes alive for the horror-comedy “Death of a Unicorn,” even as your wandering attention betrays the reality of a wannabe cult movie that mostly gallops in place.

It is Cronenberg’s empathic, almost tender approach to the material that humanizes the film; his tonal approach is redemptive rather than grindhouse exploitative.

He didn’t just passively watch the spaghetti westerns of Sergio Leone or the grindhouse films of the 1970s, he dissected them scene by scene.

And several boutique home media labels, including Arrow Video, Blue Underground, Grindhouse Releasing, Something Weird and Vinegar Syndrome, have made their most popular titles available for subscribers.

Eli Roth’s holiday slasher began as a fake trailer, sandwiched between Robert Rodriguez and Quentin Tarantino’s segments of the 2007 exploitation movie valentine “Grindhouse.”