This short clip from new Sky Arts drama Timeless features Cara as Chloe, a young woman who has to look after her great-grandmother when her mother and grandmother go away on holiday.
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In this clip, Chloe appears to be waiting for a phone call from a loved one who is away at war.
Cara Delevingne in Timeless
Fans are used to seeing the beauty dressed up for the catwalk, but in this fresh clip she appears casually dressed down as she gets in character.
The 21-year-old model looks to be a natural in front of the camera, which is good news as reportedly youthful Cara would rather be on screen than the catwalk.
She has already had a small role in the Keira Knightley period drama Anna Karenina and it was recently confirmed that Cara will be joining Dame Judi Dench, Dane DeHaan, Alicia Vikander and Cressida Bonas in Tulip Fever.
Set in the 17th century, the film which will be produced by Oscar-winning producer Harvey Weinstein follows Alicia Vikander's married woman who begins a passionate affair with an artist hired to paint her portrait.
Cara Delevingne and Sylvia Syms
As well as turning her hand to acting, Cara also recently took on a new role as bridesmaid when her sister Poppy married long term partner James Cooke.
While Poppy wore a one-off gown designed especially for her by Karl Lagerfeld, of Chanel, Cara wore an ethereal white dress, also designed by Chanel.
The sisters as well as friends and family then made their way to Marrakesh where Poppy and James had a second wedding.
With a guest list featuring some of the biggest names in British fashion, top acting talents and even royalty, the celebration was as A-list as they come. Princess Beatrice rubbed shoulders with the likes of Sienna Miller and Georgia May Jagger, Alexa Chung and Dynasty icon Joan Collins at the bash.