So, when did the trend of summer blockbusters begin? And when did it evolve to the point where studios cared about getting the top spot opening weekend instead of word of mouth momentum and what has contributed to that? I wonder what movie going was like from the 1920s through 1970s and 80s. Cause back then there was no such thing as a summer event type movie. Greatest Showman was a case where BO started very slow and then it just carried momentum and became a big hit