The reason Michael Bay’s The Island (DreamWorks, 7.22) is sneaking nationwide this Saturday (7.9) is because it’s not tracking very well, partly because Ewan MacGregor and Scarlett Johansson are “industry stars” who don’t put butts in seats. I hear it’s not quite the greatest film of the 21st Century, but it must be doing fairly well with Average-Joe audiences or they wouldn’t sneak it to begin with.