Jaws (1975): It defined what we've come to know as the summer movie season. It was the first blockbuster -- which, in retrospect, seems like a quaint notion. But its thrills and chills and suspense are just as fresh now as they were 35 years ago. Sure, the mechanical shark that preys on Amity Island looks a little, well, mechanical compared to the CGI effects that are available today. But in his youth, Steven Spielberg was wise enough to know that it's what you don't show -- what you just suggest -- that's even more frightening. And John Williams' startling score was simplicity itself. Clearly, it still isn't safe to go back in the water.