I like the full circle of Pepper wearing that purple dress in the first movie, then she wears her Rescue suit which is the same colour as well. : r ironman Pepper Potts Backless Dress John Galliano Gorgeous Purple Bias Cut Evening Dress at 1stDibs pepper potts dress, pepper potts blue dress, pepper potts backless dress Gwyneth Paltrow's Best Red Carpet Fashion: Her Style Evolution in Photos Observer Gwyneth Paltrow.