James Cameron has spent the last few years working on underwater documentaries, but his last feature broke records that still stand, the blockbuster to end blockbusters: Titanic.

Now, Cameron is heading back to the multiplex with a new sci-fi adventure that, he hopes, might change the way movies are made. Science fiction is hardly a stretch for Cameron. Before making the most expensive Hallmark card of all time, he made movies like The Terminator, Terminator 2: Judgment Day, and The Abyss that…