Sienna Miller attended the Cannes Film Festival to promote her new movie Horizon: An American Saga at the weekend and she made sure it was a family affair by bringing along her daughter Marlowe, boyfriend Oli Green and her mum Josephine. The actress, 42, arrived on the red carpet in a semi-sheer lavender gown by Chloe with layers of ruffles and a playsuit underneath, showing off her amazing figure. She accessorised it simply with a giant diamond necklace and her signature red lippy.
Her lookalike daughter looked pretty in a pink dress with large bow and black sandals. It was the 11-year-old's first ever red carpet event but she looked very at home surrounded by all the excitement and attention. Meanwhile, Oli, 27, looked dapper in a black suit, white shirt and navy tie, while sporting brown rimmed sunglasses and Josephine looked elegant in a black gown and cream shawl.
Sienna was also joined on the red carpet by her co-stars from the epic Western, Ella Hunt, Abbey Lee, Jena Malone and Owen Wilson, as well as the film's co-writer, director, producer and lead star, Kevin Costner. Like Sienna, the actor also made the event a family affair by bringing along his youngest child – daughter Grace, 13. Sienna shares Marlowe with her ex Tom Sturridge, who she was in a relationship with from 2011 until 2015.
While no longer a couple, the pair remain good friends and the actress previously said in 2017: "We still love each other," adding, "He's definitely my best friend in the entire w.