Cara's older sister has had small roles in Pirate Radio and Absolutely Fabulous: The Movie, but now it has been revealed she has a large part in the sequel to 2014 hit Kingsman: The Secret Service.

Poppy Delevingne, who will also appear in director Guy Ritchie's upcoming film King Arthur: Legend Of The Sword, has joined a cast that already includes Taron Egerton, Channing Tatum and Julianne Moore, according to The Sun.

"The Delevingnes are in huge demand in Hollywood right now, and this is a pretty big deal for Poppy in the wake of Cara’s success in Suicide Squad," a source tells the publication.

"It is her first lead role and she will be opposite some of the biggest names in the film industry."

Reports suggest Poppy will be playing one of the film's main villains.

"She’s been shooting for the past three weeks and has a few more to go," the source adds.

Poppy, who celebrates her younger sister's 24th birthday on Friday (12Aug16), has modelled for Chanel and Louis Vuitton since she was discovered in 2008.