Referenced in the "What are you doing today?" thread.
It may have been another era, but I remember watching this in a theater, and when Roy Scheider said "Smile, you son of a bitch!" and blew up the shark, the place erupted in cheers.
I pretty much see this every summer, but it was only this year that I saw a documentary on the making of the movie. I'd heard it was a bad experience, but the documentary made that sound like an understatement. Choppy seas, mechanical sharks that didn't work, I knew about before...but there was so much time wasted just because over and over some sailboat came drifting lazily into the shot, and they had to wait a while for it to go away. It was so behind and over budget that Universal wanted to take it away from Spielberg (sound familiar?), and Zanuck and Brown had to repeatedly go to bat for him.
It wasn't Spielberg's first picture, but it was his first
big picture. What a baptism of fire.