Kate Winslet - Titanic's Kate Winslet: Leo's Fatter Now, I'm Thinner

It was just a light-hearted joke, of course, as Kate is still pals with Leo and has worked with him since the release of Titanic, on the movie Revolutionary Road. In the interview, she also revealed her horror at watching herself in 3D: "I put my glasses on and I sat there all excited and then the second my face came on I was like, "Oh my God, make it stop, switch it off, somebody make it stop, turn the sound down, is that what we looked like? Oh my God, look what I looked like and look what Leo looks like!" Kate compared the experience of watching the movie 15 years down the line as akin to someone showing her an old home movie "and we're going to make the world watch it all over again. So bizarre, so bizarre."

Looking back on when the movie was originally released, Kate explained that she found overnight fame tough to deal with. "It was hard being that famous that quickly because one day I could go and buy a pint of milk and the next day I couldn't do that anymore - or I could, but they would write about how terrible I looked because I hadn't put make-up on. So it's a rather rude awakening when that happens to you." Titanic 3D is released April 4, 2012.