Short answers, pulled from the story.
Principal photography began on the 31st of July 1996 at Dartmouth Nova Scotia. The production moved to Fox Baja Studios in Rosarito Mexico by September and officially wrapped on the 23rd of March 1997.
Don Lynch and Ken Marschall joined the production team as historians to authenticate every detail. Harland & Wolff opened their private archives to share blueprints thought lost decades ago for their work.
An incident occurred on the 9th of August 1996 when someone put PCP into the soup served to the cast. Over fifty people ended up in the hospital including Cameron himself before the investigation closed in February 1999 without catching the perpetrator.
Titanic earned 1.84 billion dollars during its initial worldwide theatrical run. It became the first film to reach the one billion dollar mark on the 1st of March 1998.
The Library of Congress selected it for preservation in the National Film Registry in 2017. The film received fourteen nominations at the 70th Academy Awards ceremony and won eleven awards including Best Picture and Best Director.