I saw Black Widow on a ScreenX screen and it was not great. The side projectors were out of sync with the main projector by just enough to be noticeable and the additional light makes the theater significantly brighter than it should be. For indoor scenes the side projectors were off entirely. Early on it was slightly distracting but eventually I got used to it. Overall it doesn’t add anything to the theater experience. If you want to be immersed in a movie watch it on IMAX or sit closer.