By Simon Perry
Updated December 02, 2016 04:09 PM
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Vianney Le Caer/Invision/AP

Jennifer Lawrence is spilling on how she preps before locking lips with her costars.

Playing opposite Josh Hutcherson and Liam Hemsworth in the Hunger Games, she was relaxed. “I was like, ‘Who cares?’ and I’d eat mustard and tuna,” she tells talk-show host Graham Norton on BBC1 in the U.K. on Friday.

Moving on to American Hustle with Christian Bale, “I was like, ‘Oh damn,’ and I was really clean and ate lots and lots of mints,” she reveals.

And warming to the theme, she sounded off on actor Chris Pratt, her costar in Passengers: “With Pratt, I definitely ate mints!”

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Lawrence, who is dating director Darren Aronofsky, also tells Norton that she feels she is finished with performing stunts in her movies. “As soon as I wrapped Hunger Games, I was done with stunts, I didn’t want to do any more, I didn’t like it. I complained so much, they said, ‘So we guess it will be mainly Chris doing all the action.’ ”

Meanwhile, Pratt tells Norton that he once stripped for money when he was starting out as an actor.

“If you need $40 and you get $40, it is a success! It never got ‘uninnocent’ — I did it three or four times and then decided I would do an audition for a strip club,” she says. “But there was one of the dancers sleeping in his car waiting for the club to open, and I just felt a darkness that it was about to turn from a funny anecdote that I could tell on The Graham Norton Show one day to me being that guy.”