There's a fascinating and redacted interview with an "anonymous" subject about the disaster. To say the least it's an unsuccessful attempt to hide the identity of the individual:
"Q. So how did you get yourself started into submersible operations?
A. Well, I'm sure you're familiar with my film Titanic. When I set down the path to make that film, the first thing that I did was arrange to be introduced to the head of the submersible program at the P.P. Shirshov Institute in Moscow, a guy named..."
"Q. So how did you get yourself started into submersible operations?
A. Well, I'm sure you're familiar with my film Titanic. When I set down the path to make that film, the first thing that I did was arrange to be introduced to the head of the submersible program at the P.P. Shirshov Institute in Moscow, a guy named..."
https://media.defense.gov/2025/Sep/17/2003800984/-1/-1/0/CG-...