Why are there no iPhones in Severance?

In February 2020, Rian Johnson revealed a Hollywood secret that threatened to spoil every mystery movie you'll ever watch. Speaking to Vanity Fair in a video breaking down his latest film, the director of Star Wars: The Last Jedi and Looper divulged a subtle clue hidden in his twisty new whodunit, Knives Out."Apple, they let you use iPhones in movies, but — and this is very pivotal — if you're ever watching a mystery movie, bad guys cannot have iPhones on camera," Johnson said. "Ever