Lucy Liu took nudes of Drew Barrymore on Charlie's Angels set and still has them today

It turns out that the stars of the original Charlie's Angels were having just as much fun behind-the-scenes as they were on screen.

The iconic release starring Cameron Diaz, Drew Barrymore and Lucy Liu as three bad-a** private detective agency employees came out in 2000 - yes, it turns 25 next year, get your tiny violins as you realize how old you now feel.

However, if you wanted to throw yourself back into the action comedy and your more youthful days, what better way to do it than with Barrymore and Liu?

Based on the original '70s series, the trio work for millionaire Charlie Townsend (John Forsythe) and comedically kick butt, however, apparently they weren't just kicking butt but showing some too.

Lui appeared on Barrymore's CBS show in 2023 and the host revealed a behind-the-scenes secret the two shared.

During the episode, Barrymore said: "Do you know what I was actually trying to find? I was trying to find the nude photographs you took of me on the set of Charlie's in my dressing room."

Liu responded: "I have them. And you look gorgeous, as you still do. And you're so natural and, you know, playful and having a great time.

Drew Barrymore, Cameron Diaz and Lucy Liu in Charlie's Angels (Columbia Pictures)

"I have a series of portraits of so many people with and without clothes on, guys."

Later on in the candid interview, Barrymore asked her friend if anything in particular stood out from filming the 2000 movie, to which Liu simply recalled, 'pain'.

"I remember that they had to connect our legs to a wire to hold them up like that because it's impossible," she explained, while describing an old photo of the trio taken on set. "You have to slant your body over. I'm kind of remembering, did we have to scale that fence also?

"In heels. But what a memorable photo it made, right? We were pretty badass. I remember eight hours a day of training, five days a week."

Lucy Liu sat down with her former co-star on The Drew Barrymore Show (CBS)

Lui also recently cleared up the idea that the film's three stars didn't get along.

"What I love about that relationship is that so many people denied it and created these rumors that we were fighting and that we didn't get along," she told People.

Liu resolved: "But ultimately what I think people miss is that women can get along. We don't have to continue the idea that women are cat-fighting.

"And now we see with the #MeToo movement all of these things happening, and it sort of breaks and shatters those old prejudices."