Sadie Sink plays Jean Elaine Grey in Spider-Man: Brand New Day, a movie that, surprisingly, sets the stage for Marvel Studios' upcoming X-Men reboot. This is revealed late in Spider-Man: Brand New Day, explaining Jean's role as an antagonist for a big chunk of the movie. It's worth noting that Spider-Man: Brand New Day never uses the word "mutant," and, despite rumours to the contrary, Peter Parker is not one of them. "Spider-Man: Brand New Day is everything fans could want," we wrote in our review of the movie. Spider-Man: Brand New Day is now playing in theaters.