People like to discuss the ending of Titanic, particularly how the floating door was big enough to support both Jack and Rose. Maybe it was, as the show Mythbusters seemed to prove in 2012. But that’s not the point, according to director James Cameron. He told The Daily Beast that Mythbusters hosts Adam Savage and Jamie Hyneman are “full of sh**” and explained why Jack needed to die.
“OK, so let’s really play that out: you’re Jack, you’re in water that’s 28 degrees, your brain is starting to get hypothermia,” Cameron said (via Entertainment Weekly). “Mythbusters asks you to now go take off your life vest, take hers off, swim underneath this thing, attach it in some way that it won’t just wash out two minutes later–which means you’re underwater tying this thing on in 28-degree water, and that’s going to take you five to ten minutes. So by the time you come back up you’re already dead. So that wouldn’t work.”
“His best choice was to keep his upper body out of the water and hope to get pulled out by a boat or something before he died,” Cameron added. “They’re fun guys and I loved doing that show with them, but they’re full of sh**.”
None of the science even really matters, Cameron said, because Jack needed to die for story purposes. “Look, it’s very, very simple: you read page 147 of the script and it says, ‘Jack gets off the board and gives his place to her so that she can survive.’ It’s that simple,” he said.
At $2.2 billion, Titanic is the second highest-grossing movie in history, only behind Avatar ($2.8 billion), which is another movie that Cameron directed.