Summary
Jean Grey makes her debut in "Spider-Man: Brand New Day," portrayed by Sadie Sink, hinting at the future of X-Men in the MCU. This new iteration of Jean is a lonely teenager struggling with her powers, and her introduction suggests a deliberate reset for the X-Men within the established Marvel Cinematic Universe timeline. The film also sets up potential conflicts between mutants and the government, with Peter Parker's actions possibly influencing future events.