If box office competition does well, a good (or even great) movie may not do well. That is why I believe a sequel should be made. The success of a sequel can spark sales for the original again too. My opinion. My starting choices are: "Alita Battle Angel" - I love this movie! I want to see more! "Ex Machina" - This one needs a sequel. It was very good. "Grease" - There could be a high school reunion!