TORONTO — Welcome to a special daily edition of the Envelope at TIFF, a newsletter collecting the latest developments out of Canada’s annual film showcase. Sign up here to get it in your inbox.

The 50th Toronto International Film Festival has begun. We’re firing up the L.A. Times video and photo studio (expect our first interviews and galleries tomorrow), diving into the buzziest movies and putting together a daily taste of TIFF for you over the next four days.

The day’s buzziest premieres

‘Good Boy’

Baby-faced 25-year-old actor Anson Boon already has the resume of a British bad boy: He played the Sex Pistols’ Johnny Rotten for Danny Boyle (“Pistol”) and a gangster’s rebellious grandson for Guy Ritchie (“MobLand”). Today, I’m curious to see Boon as the lead of “Good Boy,” wher

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