Titanic: 20 Years Later with James Cameron

Very interesting to revisit the film (which I loved) as Cameron reassesses what details/design he got right/wrong after continuing to make dives to the wreckage (over 30!) after the films release. This doc concentrates on set design and the details he had to assume or guess, most of which he did guess right, while also solving some unanswered questions about what really happened. Included are several surviving family members opinions on how they deemed the film. A lot of information and behind-the-scene type interviews packed in this 1 hour doc!! Will future blue rays contain this in extras?