17 Secrets About the Film

"I fell asleep and, when I woke up, I was completely soaked from head to toe because I was sweating. I was like, 'Something's definitely wrong,' and I looked in the mirror and my eyes were like bloodshot and I was very pale," he continued. "I was like, 'Hmm, something might be off here.' So that's when I called my dad and I was like, 'Hey, Dad, what do I do for extreme stomach pain?' And he said, 'You go to the hospital.'"

Mann recalled the surprise surgery, which happened early on during production.

"The first week we were working together he was having stomach pains; he was doubled-over between takes," Mann told MTV. "The next day, we found out that his appendix burst. He went to the hospital and had it taken care of, and he was back at work the next day!"

(Originally published April 17, 2019, at 3:00 a.m. PT)