Movie director and submersible maker James Cameron said on Thursday he wishes he had sounded the alarm earlier about the submersible Titan that imploded on an expedition to the Titanic wreckage, saying he had found the hull design risky.

James Cameron's long-awaited "Avatar" sequel has become the fastest 2022 film to smash $1 billion in global sales at the box office in just 14 days since its release in mid-December, according to the entertainment industry website Variety.com.