What It Was Like Onstage During the Oscars 2017 Best Picture Mistake

LOS ANGELES — It’s one of Hollywood’s most secretive and unusual jobs: Brian Cullinan, a partner at the accounting firm PwC, and a colleague are tasked with making sure the statuettes at the annual Academy Awards are correctly distributed. He stands in the wings of the Dolby Theater here in a tuxedo and pulls sealed envelopes out of a briefcase, giving the correct one…