Here's a breakdown of the timeline:
* Pre-production: This phase, which includes scriptwriting, casting, location scouting, and set design, started in 1995 and lasted around two years.
* Filming: This phase, which involved shooting the movie, took place from 1996 to 1997.
* Post-production: This phase, which includes editing, sound mixing, visual effects, and music composition, took another year or so.
So, from the very beginning of the project to its release in 1997, it was a three-year journey for the Titanic crew.