Kate Winslet cringed at the sight of herself back on the big screen in the 3-D version of ‘Titanic,’ the blockbuster film that turned a barely known English actress into a megastar over 15 years ago. “The second it came up I literally went, ‘make it stop, make it stop, turn it off. I’m blocking it off. Do I really sound like that? Did I really look like that?’ It’s very, very bizarre,” Winslet said when the filmmakers showed her a clip of the movie. “It’s like someone saying, ‘OK here’s a home video we made of you 16 years ago and now we’re gonna make you watch yourself in 3-D.’” Winslet and Leonardo DiCaprio captivated audiences as the star-crossed lovers Rose DeWitt Bukater, a first class debutante, and Jack Dawson, the lowly boy from steerage, in the 1997 epic romance ‘Titanic.’ Now, timed to the 100th anniversary of the Titanic’s sinking, 15 years after the original film came out, 300 computer artists have spent 750,000 man hours to give ‘Titanic’ a third dimension.