There is another documentary that has recently had showings in a few cities - and that seems to be on an interminable delay from an official DVD release. The fan-made
The Shark Is Still Working has the participation and blessing of practically every remaining player involved in the film, including a lot of the islanders for whom Jaws was their one brush with Hollywood. Roy Scheider provided narration just months before his passing. Check out the clips at the website. I cannot wait to see this -
http://www.sharkisstillworking.com/