The film focuses on her decision to flee the pressures of the royal family and take control of her own life at a key juncture in the early 1990s.
As noted by royal expert Omid Scobie, as of Thursday, the Medium Lady D-Lite Bag, which retails for $4,900, had sold out on Dior’s website.
The actress also observed that in spite of their obvious differences, they also shared some similar personality traits.
The iced slice came from one of the 23 official wedding cakes marking the July 29, 1981 marriage of the heir to the British throne and his shy 20-year-old bride.
The ‘Twilight’ star has also donned a red and green tartan blazer for the photo.