Back in the 1983, filming on the sequel to 1976's Grizzly was underway. But the film was [notoriously] never finished. Until now.
Well, there’s ordinary “slow,” and then there’s the Rip Van Winkle-grade variety. After decades spent as a famously abandoned project, “Grizzly II” finally hits theaters and VOD in 2021. For reasons that remain murky, the Hungary-shot horror thriller originally titled “Grizzly II: The Concert” went unfinished after principal photography ended in 1983, its crucial critter effects (among various other elements) left undone for lack of funds.
So 1983's Grizzly II: The Concert is now 2021's Grizzly II: Revenge.
Source: Variety