In the pic, Holmes, 37, is dressed in a stunning replica of the famous lace-covered beige Valentino gown the former first lady wore in October 1968 when she married Greek shipping magnate Aristotle Onassis on the island of Skorpios, which was owned by the billionaire.
After tying the knot in a Greek Orthodox ceremony attended by her children with the late President John F. Kennedy — Caroline and John Jr. — as well as two Kennedy sisters, the couple and a small group of about 40 guests celebrated on Onassis' luxury yacht, the Christina O.
The couple's surprise wedding came just five years after President Kennedy was assassinated in Dallas.
Holmes is featured in the wedding photo with Alexander Siddig as Onassis, who was 23 years older than his bride.
The Ray Donovan actress is one of the executive producers on this new project and last week shared a photo on Instagram from the set, where she and daughter Suri, 10 — whose father is Holmes' ex-husband, Tom Cruise — sat together on customized directors chairs.
"My Sweetie," the doting mom captioned the black-and-white shot, along with a red heart emoji and the hashtags "setlife" and "gratitude."
The Kennedys: After Camelot is based on the bestselling book After Camelot: A Personal History of the Kennedy Family — 1968 to the Present by J. Randy Taraborrelli, and will air in 2017.
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