Sadie Sink has shared a significant update on her MCU future and the X-Men reboot movie. Who else is starring in the MCU X-Men movie with Sadie Sink? Sadie Sink also shared her thoughts on the recent castings for the X-Men reboot movie in the MCU. Besides Weaving and Connor, Sadie Sink is the only confirmed cast member for the X-Men reboot movie so far. Jake Schreier’s X-Men reboot movie is expected to hit theaters at some point in 2028.