READ MORE: Kate and Sophie have given us all the wedding guest dress inspo we need this summer - shop floral, lace and other chic outfit picks from royal-approved brandsSHOP: I'm a royal fashion expert and John Lewis' summer collection has so many pieces I know Kate Middleton will loveSee more Daily Mail on Google - save us as a Preferred SourceBy REBEKAH ABSALOM, SENIOR FEATURES WRITER Published: 07:40 BST, 30 May 2026 | Updated: 07:40 BST, 30 May 2026

A white dress is a timeless addition to any summer wardrobe - and if you're looking for inspiration, look no further than Gillian Anderson.Daily Mail journalists select and curate the products that feature on our site. If you make a purchase via links on this page we will earn commission - learn moreThe actress made a chic appearance at the Cannes Film Festival wearing a sleek maxi dress by royal-favourite brand ME+EM.The label has long been a staple among stylish royal women, with the likes of Catherine, Princess of Wales, Sophie, Duchess of Edinburgh, Zara Tindall and Princess Beatrice all stepping out in its polished designs.Gillian opted for the brand's white Effortless Maxi Dress, which featured a flattering fit-and-flare silhouette elevated by contrasting black seam detailing for a subtle architectural edge.Better still, the piece is crafted from innovative 'crease-less linen', making it an ideal choice for effortless AM-to-PM summer dressing.When I first caught a glimpse of Gillian's look, I couldn't help but be reminded of a similar Emilia Wickstead black-piped dress worn by the Princess of Wales at a charity polo match in 2022 - suggesting she may well have taken inspiration from Kate's style playbook.Keen to recreate the look? You can shop Gillian's exact dress below, alongside my favourite high street alternatives for achieving the same sophisticated aesthetic for less.Recreate the look