I have it in my collection, and it's really good, I think. It documents Ballard's discovery, and I believe was the first (and certainly the one with best access to Ballard as-"it"-happened) documentary about Titanic post-discovery.
This is my absolute favorite movie!!! I have wore out 2 VCR tapes and now have 2 copies of the DVD. I have watched this so many times, and I have been known to quote it word for word. It starts at the search, and goes to the discovery. Check it out.
I am sure that it will be one of your favorites to.