Part 6/13:
The process was fraught with setbacks. On the first day of shooting, a leak caused by a lightning storm unleashed 150,000 gallons of water per minute, forcing the crew to bring in dam repair specialists. To record dialogue, Cameron and his team built custom communication helmets that remained clear underwater while housing state-of-the-art microphones. These helmets were innovative but prone to technical issues, often breaking down amid the chaos.