New Delhi, April 15 (ANI): Kate Winslet has revealed that her nude 'Titanic' portrait where she draped herself naked over a sofa still haunts her and that she always declines to autograph a copy of it.The Academy Award winner asserted that she doesn't sign those copies as she feels very uncomfortable and people ask her to autograph that picture a lot and there was a photo of it as well that someone's lifted from a still of the film, media reported.The 38-year-old actress said that photograph got passed around, adding that she had never meant it to be a photo that she would end up seeing after 17 years.