Jim Carrey says SEAL Team Six officer trained him to endure 'Grinch' makeup after suffering from panic attack

"Jim started having panic attacks. I would see him lying down on the floor in between setups with a brown paper bag. Literally on the floor. He was miserable," Howard told Vulture.

Howard said Grazer found Marcinko, who, the director said, "trained the military on enduring imprisonment and torture."

"I said, 'Listen, you can quit on Monday, but just spend time with this guy on the weekend,'" Grazer told Vulture.

"Later on, I found out that the gentleman that trained me to endure the Grinch also founded SEAL Team Six. But what really helped me through the makeup process, which they eventually pulled down to about three hours, was the Bee Gees. I listened through the makeup process to the entire Bee Gees catalogue. Their music is so joyful. I've never met Barry Gibb, but I want to thank him," Carrey said.

He said earlier in the interview that the make-up took eight hours early on in the process.

"This wasn't as much mental as it was physical because it was destroying Jim's skin. Medically, it was determined he really couldn't do it five days in a row. So he would have a day off, or he'd only be off-camera feeding dialogue on Wednesdays," Howard said.