Goldie Hawn's "heart is broken" following the death of Diane Keaton.

The Snatched actress paid tribute to her First Wives Club co-star following her passing at the age of 79 and remembered her friend as a "genius" who she will "miss the hell out of".

She wrote on Instagram: "Diane, we aren't ready to lose you. You've left us with a trail of fairy dust, filled with particles of light and memories beyond imagination.

"How do we say goodbye? What words can come to mind when your heart is broken? You never liked praise, so humble, but now you can't tell me to 'shut up' honey. There was, and will be, no one like you.

"You stole the hearts of the world and shared your genius with millions, making films that made us laugh and cry in ways only you could.

"I was blessed to make First Wives Club with you, our days starting with coffee in the makeup trailer, laughing and joking, right through to the very last day of filming. It was a roller coaster of love.

"We agreed to grow old together, and one day, maybe live together with all our girlfriends. Well, we never got to live together, but we did grow older together.

"Who knows… maybe in the next life. Shine your fairy dust up there, girlfriend. I'm going to miss the hell out of you.

" My heart goes out to your beautiful children, Dex and Duke. I love you."

Steve Martin shared a light-hearted tribute to his Father of the Bride co-star.

He shared a clip from Interview Magazine in which Martin Short asked Diane which of the two actors were sexier and she replied: "I mean, you're both idiots."

The Only Murders in the Building star captioned the post: "It sums up our delightful relationship with Diane."

Mandy Moore hailed playing Diane's daughter in 2007's Because I Said So "an honour of a lifetime".

She wrote on Instagram: "They say don't meet your heros but I got to work with one of mine and even call her 'mom' for a few months. An honor of a lifetime.

"What an incandescent human Di is and was. I am so sad she's gone for all the reasons but also because it felt like she'd be here forever, dazzling us with her talent and charm (and her style, c'mon)!!! One of the very best to ever do it. All my love to her children and loved ones.(sic)"

And Leonardo DiCaprio, who starred in 1996's Marvin's Room with the actress, also described working with Diane an "honour".

He shared a photo seemingly taken from the time of shooting the movie and wrote on his Instagram Story: "Diane Keaton was one of a kind. Brilliant, funny, and unapologetically herself.

"A legend, and icon, and a truly kind human being. I had the honor of working with her at 18. She will be deeply missed."

Jane Fonda remembered her Book Club co-star as a "spark of life and light" and praised her acting talent.

She shared a photo of her friend on Instagram and wrote: "It's hard to believe…or accept…that Diane has passed.

"She was always a spark of life and light, constantly giggling at her own foibles, being limitlessly creative…in her acting, her wardrobe, her books, her friends, her homes, her library, her world view. Unique is what she was. And, though she didn't know it or wouldn't admit it, man she was a fine actress!(sic)"