Emily Blunt once said that she had 'absolutely' wanted to throw up after kissing one of her co-stars as part of a performance.
As an actor, it's all part of the job to sometimes lock lips with a co-star for the sake of fictional drama and romance.
Of course most of the audience knows it's all a bit of playing pretend but it can be hard not to get drawn into the story.
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However, sometimes the truth behind the scenes is a little more nauseating as when Blunt made an appearance on The Howard Stern Show, she admitted there were times when she felt sick kissing one of her colleagues.
Before you get ahead of yourself, she didn't name whichever co-star it was that she lacked the romantic chemistry with to make kissing for a scene bearable.
In defence of whomever this poor soul is, it was show host Howard Stern who first asked Blunt whether she ever wanted to 'throw up' after a kissing scene.
She said: "Absolutely, absolutely.
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"I wouldn’t say it’s sort of extreme loathing, but I’ve definitely not enjoyed some of it."
As for chemistry between Blunt and her co-stars, elsewhere in the interview, she said it's not always about liking the person she was acting alongside.
The Edge of Tomorrow star said she'd 'had chemistry with people I haven’t liked at all', and that developing a spark with a colleague was 'sometimes a strange thing'.
“Sometimes you can really, really like someone, and you can be pals, and you can have a rapport that’s really effortless, but it doesn’t translate onscreen," she explained, lest we think that this nauseous kiss came from a place of dislike.
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What it takes to score chemistry between two stars was difficult for the Oppenheimer star to describe, saying it was an 'ethereal thing that you can’t really bottle up and buy or sell'.
She's not the only one to open up on how it's sometimes not as fun as it looks to be kissing co-stars.
Kate Winslet said that during the filming of Titanic things went a bit unpleasant during a kissing scene with Leonardo DiCaprio because of all the makeup they had on.
She said: "We kept doing this kiss, and I’ve got a lot of pale makeup on and I would have to do our makeup checks — on both of us, between takes — and I would end up looking as though I’d been sucking a caramel chocolate bar after each take because his makeup would come off on me."
Not quite as romantic as the film made it look, really.
Topics: Emily Blunt, Celebrity
Joe Harker