Surprisingly, there was a time when Hollywood didn’t think summer and movies went together. Hollywood thought people wouldn’t go to the movies when they could go outside in the warm weather instead. But by the late 1970s Hollywood learned that by treating summer movies like major “events” with huge marketing pushes that everyone – especially the millions of children off from school on summer vacation – would flock to theaters to see the latest blockbuster. Of course, the movies had to be exciting to keep so many people coming to theaters instead of the beaches, and some of the biggest summer blockbusters of all time are also among the greatest movies ever made. May through July has since been the standard window of when Hollywood releases most of its biggest moneymakers.