In “Death of a Unicorn,” the last-act thrills just can't match the early-going’s billionaire satire that gleefully prescribes a worthier comeuppance.

Horses gallop uneasily into less-than-mythic filmmaking in ‘Death of a Unicorn’ Paul Rudd and Jenna Ortega in the movie “Death of a Unicorn.” ...

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 ...