“Can I get an ‘Amen?’” Rian Johnson bellowed while welcoming a packed house to the world premiere of his third “Knives Out” installment “Wake Up Dead Man” on Saturday night at the Toronto Film Festival .

The crowd generously complied, but their early shouts of “amen” paled in comparison to the laughs and cheers that echoed through the theater for much of the gothic thriller’s two-hour runtime. Indeed, the new “Knives Out” movie nearly brought the house down.

Then, as the credits rolled, TIFF moviegoers welcomed the all-star cast — Daniel Craig, Josh O’Connor, Glenn Close, Kerry Washington, Josh Brolin, Mila Kunis, Jeremy Renner, Andrew Scott, Daryl McCormack and Cailee Spaeny — to the stage with a roar of applause for the Q&A.

What many in the audience didn’t know was that the troupe

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