The Absolutely Fabulous movie has stars galore in it: Kate Moss, Rebel Wilson, Emma Bunton and many more.
But actress Joanna Lumley has revealed there's one star you won't be seeing make a cameo: Benedict Cumberbatch.
Writing for The Telegraph, she revealed Benedict was 'booked up for the next five years'.
She wrote about the movie's director, Mandie Fletcher, trying to finalise the casting regarding the cameo roles.
She said: "Mandie Fletcher, our director, is trying to lock down the casting of cameo roles between takes and sometimes I have to sit with her in a nice chair, eating a delicious Brie baguette, and throwing out names like 'Benedict Cumberbatch'.
"Although Benedict Cumberbatch, it turns out, is busy for the next five and a half years. What is it with actors? We are offering tiny, tiny, tiny roles that will take up minuscule amounts of time and it's, 'Oh no, sorry, I'm busy doing films,' or, 'So sorry, I am going round the world with all my actor friends for the next two years,' or a simple, 'I'm dead.'"
Joanna also spilled the beans on Kate Moss and what she was like on set.
She said: "She doesn't play by the rules, she doesn't do fads or tantrums or eating goji berries, and yet she gets cooler and more beautiful with every day that goes by."
Absolutely Fabulous: The Movie will be released on July 1.