The model, 21, looked to be having a ball as she partied on the streets of London during a break from filming her new movie Kids in Love.
She was joined by the cast of the film and was seen being given a piggy back by co-star Will Poulter, who most recently starred in We're the Millers alongside Jennifer Aniston.
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Cara was showing off her toned stomach in a brightly coloured crop top and low-slung black leggings. A floral headband and bright yellow eyeliner topped off the carnival look.
The face of Burberry kept her fans updated with her day out, posting a picture on Instagram of the party atmosphere. "Are you ready for a carnival?!?," she wrote.
Cara is thought to have a lead role in the film, directed by Chris Foggin, which follows a group of young Londoners who spend their days partying.
Cara has often spoken about her desire to get into acting and in 2011 she had a small part in Anna Karenina alongside Keira Knightley.
In a recent interview, the young model revealed that "everyone worries about me".
She is currently enjoying her model of the moment status, attending high profile parties with a gaggle of high profile friends. But her family and friends hold concerns for her.
"It's hard for my family , and I know I have to be careful," she told W magazine. "I've done a great job so far."
When the pressure of her whirlwind success does get too much, Cara revealed she has turned to people in the industry for advice .
She revealed that she had called Rihanna when she was unable to switch off during a break to Greece with her sister. "She said 'It's easy to drown yourself in work. That's a form of escapism. So, if you're alone and you want to cry, cry'.
"And I did. But by then, it was time to leave and get back to my life ."
Her hectic schedule – which saw Cara walk in more than 40 shows in the last fashion week season – has also taken its toll on the star physically, as she suffers from a type of psoriasis that flares up during times of stress.
"Kate Moss saw me before the Louis Vuitton show at 3 am, when I was being painted by people to cover the scabs," she said.
"She said, 'This is horrible! Why is this happening? I need to help you.' She got me a doctor that afternoon. Kate gives really good