It's been 20 years since Matthew McConaughey and Kate Hudson played Ben and Andie in, "How to Lose a Guy in 10 Days," although the romantic comedy has seen a resurgence lately in pop culture due to viral TikTok trends that incorporate specific moments of the film.

In a conversation celebrating the 20th anniversary of the films release, McConaughey and Hudson, who have also starred in the 2008 film "Fool's Gold" together, opened up about kissing one another. 

"In respect to our now partners, we do kiss nicely," Hudson told the Texas native in reference to her fiancé Danny Fujikawa and McConaughey's wife, Camila Alves.  "I would have to agree with you," said McConaughey.

"It was always a very nice kiss," she added. "Absolutely, absolutely," McConaughey concurred.

Kate Hudson on the red carpet in a silver dress with gold 3D flowers split Matthew McConaughey on the red carpet with a black button down and brown suit jacket

In an Instagram live, Kate Hudson and Matthew McConaughey detailed what has made their past on-screen kisses difficult, but also enjoyable. (Steve Granitz/Matt Winkelmeyer)

KATE HUDSON REVEALS HER BEST ON-SCREEN KISS AND WHICH CO-STAR SHOULD BE 'CANCELED' AFTER THEIR SMOOCH

In their discussion, the actors also enlightened fans of the stark contrast between displays of passion on-camera to what is really going on behind the scenes. 

"My whole thing is like, we're always in weird environments [when we kiss in movies]," Hudson explained. "There was only one time when we kissed that was like so nice and gentle, in the bathroom."

"Yeah, everything else has not been climate-controlled. Everything else was like 'Swim up to the top, the sharks almost ate you, you just fell from a plane from 300 feet," McConaughey lamented.

"Tread water!" Hudson interjected. 

Matthew McConaughey in black playing Ben on the set of "How to Lose a Guy in 10 Days" while Kate Hudson in a white shirt and black jacket plays Andie and laughs in front of a moped

Matthew McConaughey and Kate Hudson are photographed on-set of their 2003 film "How to Lose a Guy in 10 Days." (RJ Capak/WireImage)

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"'Tread water, before you catch your breath, kiss,'" McConaughey joked.

"When you're kissing anyone in a movie," Hudson clarified, "It's professional; we're actually trying to create something that evokes something in a certain way that might not exactly be the way you would necessarily do it in real life."

"There's always the proverbial ‘run back together from - from far away points, and in stride, catch, lip-lock, swing, turn, and settle on this mark with a sunset behind your face,'" McConaughey admitted of what is expected of actors. "Sounds great," he explained, before offering another reality where he had a bruise on his lip from the staged kiss.

McConaughey recalled director Donald Petrie realizing he and Hudson could "play with each other" on-camera, allowing for more improvisation.

Matthew McConaughey in a black suit and tie for the Golden Globes in 2003 alongside Kate Hudson in a patterned brown, orange, and red dress

Matthew McConaughey and Kate Hudson gave a more realistic explanation of how they film kissing scenes in movies. (Dan MacMedan/WireImage)

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"A lot of the stuff is what we came up with, is what's in the movie," Hudson explained. "A lot of those little lines."