This movie was finalized as part of a bet made on the radio. Jennifer Saunders was determined to get the movie made in order to win a bet with comedy partner Dawn French, and would have to pay her ten thousand pounds sterling or have the script in her hands by the end of 2015. She succeeded in the latter, although when French first properly looked through the script, after page thirty-five, it just said "blah blah blah blah...".
Despite featuring as a key element in the storyline, Kate Moss hadn't been approached to feature in this movie, when Jennifer Saunders was pitching the story to BBC Films and Fox Searchlight. Saunders admittedly took it for granted that she would be a part of the project.
Graham Norton announced his cameo on his Instagram profile. Several years before this movie was announced, he interviewed Jennifer Saunders on this talk-show The Graham Norton Show (2007) and revealed his own excitement for the possibility of this movie.
Rebel Wilson, longtime fan of the original series, already lobbied for a role in the movie in 2012, before her career took off internationally. She admits to have sent a letter to Jennifer Saunders in which she begged her for a part, and suggested she could play Patsy's long-lost daughter. Eventually, when the production was set to start, Wilson was in such demand that she could only get one day off her schedule to film a small cameo, which was shot on the final day of principal photography. In real-life, Wilson once had her DVD covers of Absolutely Fabulous (1992) signed by Joanna Lumley.
Barry Humphries: In two cameos, as Charlie and as Dame Edna Everage. Humphries is billed for Charlie while the Dame Edna character is credited for "her" character.