For one, Winslet had to film many a water scene without a wetsuit.
There were also some unexpected post-movie effects.
Winslet recently confessed to MTV that she feels like throwing up every time she hears the famous Celine Dion Titanic movie theme song My Heart Will Go On since just about everyone insists on playing it for her.
She also revealed that she gets boat jokes every time she boards a watercraft.
Winslet is not the only actress to star in a disaster movie, although she is probably the only one to get hounded with such an iconic song.
Here are 10 other actresses who have had starring roles in disaster movies.