Because Princess Diana was so high-profile and photographed so often, Panepinto told POPSUGAR that sourcing inspiration images and reference material was easy. Some of her most important moments were captured on film all throughout her life, including her wedding to Prince Charles.
Panepinto even managed to find inspiration for the movie much closer to home: "My mom actually had some books from the '80s and '90s that I found images of Diana in," she said. "I also watched documentaries about Princess Diana and filled in any gaps by hunting down images online."
She says that her favorite outfit in the film was Diana's intricate Chanel gown, which was painstakingly re-created for the movie's poster. Later in life, after her marriage ended, Princess Diana no longer wore the brand. She said that the CC logo reminded her of her ex-husband, Charles, and his rumored mistress, Camilla, who apparently gifted Charles with a pair of CC logo cufflinks as a gift when he and Diana were married.