EXCLUSIVE: Jennifer Lawrence Reveals She Used to Yell at Ex Nicholas Hoult in a Southern Accent

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With X-Men: Apocalypse headed to theaters later this month, the cast of the superhero epic is looking back at their time together over the past three X-Men films.

Jennifer Lawrence and James McAvoy recently sat down with ET's Carly Steel during a press junket for the action blockbuster, and the 25-year-old Joy star shared a funny story about her past relationship with Apocalypse co-star Nicholas Hoult.

WATCH: Exes Jennifer Lawrence & Nicholas Hoult Are All Smiles on 'X-Men' Set

"Nick always said whenever I yelled at him it was always in a Southern accent," shared Lawrence, who hails from Louisville, Kentucky.

"I find if I get angry, drunk, or really excited I get more Scottish," added McAvoy, a native Glaswegian.

"Oh, I used to yell at Nick and kind of see like his smile flickering," Lawrence recalled. "[I was] like, 'Why are you smiling?' And he's like, 'Because you sound like your dad.'"

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Lawrence and Hoult dated while filming X-Men: First Class and X-Men: Days of Future Past. The couple called it quits in August 2014, but reportedly remained amicable after their split.

In the popular X-Men franchise, McAvoy stars as Professor Charles Xavier, the telepathic leader of the team of mutant superheroes. Lawrence, however, stars as the deadly shapeshifter Mystique -- a role that required the Oscar winner to show quite a bit of (blue paint-covered) skin.

So what does Lawrence do to maintain her svelte Mystique physique? Apparently, it's all about understanding your metabolism and your limitations.

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"I try to work out. Then as you get older there's just certain things [you can't do]," she explained. "You can't lay in bed and eat pizza anymore."

"She eats pizza on the treadmill now," McAvoy chimed in.

X-Men: Apocalypse, which also stars Michael Fassbender, Oscar Isaac, Olivia Munn, Rose Byrne, Evan Peters and Sophie Turner, hits theaters May 27. Check out the action-packed trailer below.

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