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Movies like Grizzly II: Revenge (2020)

All hell breaks loose when a giant grizzly, reacting to the slaughter of her cubs by poachers, attacks a massive rock concert in the National Park. [This sequel to "Grizzly" (1976) was left unfinished after production wrapped prematurely in 1983, and was not officially released until 2020, though a bootleg workprint version had been in circulation for some years prior to this.]