"Extra" caught up with the $2-billon shipwreck star to talk about the colossal hit, now sailing back to the big screen 15 years later, in vivid 3D.
"Every single day I was overwhelmed. I was overwhelmed on the shoot and every day after the film came out. Nothing could have prepared me for the experience and the film being that successful," says Winslet.
"Titanic 3D" sinks into theaters on April 4.