To be fair, Titanic had such a nightmarish production everyone thought it was going to be a mega bomb and finish Cameron's career for good. A second studio had to step in to speed the risk, the food poisoning fiasco, lots of reports of how big an asshole Cameron was on set, a summer to Christmas delay and launching head to head against a James Bond film hot off Goldeneye with Costner's The Postman(lol) looming the next week.
The food poisoning story really is bizar.
http://www.cinemablend.com/new/Titanic-Someone-Secretly-Snuck-PCP-Cast-Crew-Food-69464.html