Millie Bobby Brown, Noah Schnapp, Caleb McLaughlin, Joe Keery, Natalia Dyer, Finn Wolfhard, Gaten Matarazzo, Sadie Sink, Jamie Campbell Bower, Charlie Heaton, Amybeth McNulty, Brett Gelman, Cara Buono, Nell Fisher, Ross Duffer, Matt Duffer, Linda Hamilton, Ted Sarandos, Shawn Levy seen at ODEON Luxe Leicester Square for Movie Premier