Filming was scheduled to last 138 days. However, it grew to 160. Many cast members came down with colds, flu, or kidney infections. This happened during the many hours they spent in the cold water. Winslet, who also had these symptoms, decided she would not work with Cameron again unless she earned "a lot of money". Several other cast members left the movie. Three stuntmen broke their bones. The Screen Actors Guild decided to begin an investigation. They concluded that there was nothing unsafe going on on the set.