Titanic (the real ship) is in water twice as deep as the BOP. The Cameron production company operates 2 of the 4 manned submersibles in the world that can go to that depth. Prior to the filming of the movie he was personally involved in researching the actual Titanic site, using the submersibles and camera ROV’s.
Whatever his politics, Cameron spent a lot of time and money on the Titanic project, and much of it was spent at the bottom of the ocean with the real Titanic.
I'm not sure how this would be helpful to the current situation, but it is not as misguided as Meryl Streep testifying before congress about Alar on apples.
I just don't think it's Cameron himself who has the expertise....
You can buy sub's, buy all kinds of equip. And hire those that can run it...doesn't make him an expert. Maybe just the $$ man...
Besides all that....what does Cameron know about capping a well? Probably as much as I do. ZERO.
You got me looking about...and if anyone should be consulted about deep sea diving...it would be this guy Dr Anatoly Sagalevitch.
FWIW-