Now that Titanic 3D is out, director James Cameron is here to explain the motives behind the release. In this IGN clip, Cameron explains how the way the film was shot made it perfect for today's digital crowd. He also proceeds to debunk the whole ending myth, which DiCaprio having to float on the plank beside Winslet. According to him, while the plank would have had enough space for the both of them, the buoyancy would have made it difficult to survive: