Kate Middleton arrives at Westminster Abbey. (Gareth Fuller/AP)

Princess Grace Kelly waves to cheering crowds lining the road as she rides in an open car with Prince Rainier III following their wedding ceremony in the Monaco Cathedral. (AP)

There’s no denying the similarities between Kate’s dress and the lacy, long-sleeved look of the Princess of Monaco. Grace Kelly’s 1950s wedding gown was designed by MGM costume designer Helen Rose. Her dress featured floral lace and seed pearls and was constructed of four parts including a bodice, silk skirt, ruffled petticoat and tulle train.

Lady Diana Spencer, soon to become the Princess of Wales, showing her wedding gown for the first time, turns as her bridesmaids set her train on arrival at Saint Paul's Cathedral for her wedding to Prince Charles.

Kate’s dramatic cathedral train and statement sleeves also reflect details of Princess Diana’s history-making wedding dress.

Still from “The Sound of Music”

Still, something about Kate’s gown reminded us of Maria. The “Sound of Music” heroine wore a fitted-bodiced dress with long sleeves and a v-neck to her own military wedding.

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