She plays Jean Grey in the MCU's Spider-Man: Brand New Day, starring Tom Holland, and X reviews can't get over her performance in the film. Internet reviews Sadie Sink's Jean GreySadie Sink is the surprise element and also one of the most important characters of Spider-Man: Brand New Day. A user on X, wrote, "Sadie Sink as Jean Grey was, without a shadow of a doubt, Marvel's best choice." Another fan wrote, "Also special appreciation post for Sadie Sink especially the climax she's truly my Jean Grey. Here are some other X posts:What do we know about Sadie Sink's Jean Grey from Spider-Man: Brand New Day?