Of all the crazy stories from the making of James Cameron’s “Titanic,” none come close to that of the crew being drugged with Pcp. All hell broke loose Aug. 9, 1996 on the film’s set in Halifax, Nova Scotia when craft services provided clam chowder that happened to be spiked with the drug. Halifax was where Cameron filmed the “Titanic” framing device scenes, featuring Bill Paxton as the leader of an expedition that discovers Rose’s necklace. To commemorate the film’s 25th anniversary, Vulture spoke to a couple crew members about the night the crew got drugged.

“We had a room for the grips and electricians, and one of the guys started talking really hyper,” crew member Jake Clarke said. “He’s a big guy, like six-four, and he says, ‘Do you guys feel okay? Because I don’t. I feel like I’m on something, and believe me,...