James Cameron on why he created Titanic 3D

Canadian-born director James Cameron has emerged as one of Hollywood's hottest entrepreneurs by cashing in on the 3D technology he created for Avatar.

The director behind Hollywoods two highest-grossing films Avatar and Titanic set the bar for 3D technology with cameras he developed himself and now rents through his Cameron Pace Group.

Cameron believes the market for 3D isstill in its infancy and will grow, as a meansof gettingaudiences who have many other options into cinemas andkeeping them there. He plans to test the prospects for 3D conversions withTitanic 3D,to be releasedin commercial cinemas on Wednesday.

The director who dove to the wreck of the great ocean liner before making his 1997 blockbuster Titanic was determined to create a conversion that looked as if it had beenmeant to bein 3D.

"To convert this movie to 3D required the work of over 300 artists working for about 60 weeks," he told CBC News. "You really have to outline by hand every single object, sculpt the faces, sculpt the clothing and all that and do it for every single frame. It's incredibly time-consuming and labour intensive to do it right."

In an interview with CBC News, Cameron explains why hes so keen onthe formatand talks about his passion for undersea exploration.