It’s the door that launched a thousand spats. A Chinese passenger aboard the sinking Titanic survived the horror by clinging to a floating door in the icy Atlantic – inspiring one of the blockbuster film’s most iconic and debated scenes , his grandson revealed. Fang Lang miraculously survived when the doomed ocean liner went down in April 1912, an ordeal later depicted in James Cameron’s 1997 epic “Titanic,” which shows Kate Winslet’s Rose DeWitt Bukater taking refuge on a wooden door after the