I have seen the new 3D version of "Titanic" and, as with the original 1997 version, I found it a magnificent motion picture. The hour or more after the ship hits the iceberg remains spellbinding. The material leading up to that point is a combination of documentary footage from the ocean floor, romantic melodrama, and narration by a centenarian named Rose. The production brings to life the opulence of the great iron ship. Its passengers are a cross section of way of life that would be ended forever by the First World War. In a way, the iceberg represented the 20th century.