I wouldn't call Jaws a popcorn kiddie flick, but yeah, Lucas and Spielberg practically created the Summer Blockbuster which is still a popular thing today. I don't think the amount of crap movies we've been getting from hollywood lately can be blamed solely on them though (maybe just lucas), nor are we in as big a cinematic hole, not after so many good movies have come out of peter jackson. Of course, every other movie has to be a sequel to something these days... so view that as you will...