Easy to forget Star Wars was called the cinematic equivalent of junk food by it's detractors back then, among other things. I still chuckle at the memory of one critic who was strongly suggesting parents were better off taking kids to the Disney film Candleshoe instead. Oh, the irony!
And some of the usual suspects have blamed SW and Jaws for Hollywood's blockbuster mentality ever since.
It's all a load of dingo's kidneys of course. ;)