Millie Bobby Brown wears corset with tulle train at 'Stranger Things' Season 5 London premiere Millie Bobby Brown wears corset with tulle train at 'Stranger Things' Season 5 London premiere Should 12 year old Stranger Things star Millie Bobby Brown really be modelling 4,000 dresses? Millie Bobby Brown at her 22 year old birthday looked absolutely regal as she officially turned 22 on February 19. To mark the milestone, the actress hosted a spectacular Marie Antoinette themed Mattea Slinky And Mesh Mini Dress With Scarf Dark Chocolate XS Asymmetric Shoulder Drape Detail Mini Dress In Chocolate Brown EGO US EGO