WORLD EXCLUSIVE : Collection Traverso 65 years of the festival of Cannes 1958 Cannes Grace kelly and Prince Rainier attend at the film festival ? Collection Traverso for Allpix Press

Combo picture shows on top Prince Rainier III of Monaco and US actress and princess of Monaco Grace Kelly after their wedding ceremony in Monaco on April 19, 1956 and on bottom Prince Albert II of Monaco and his wife Princess Charlene of Monaco during the procession following their religious wedding on July 2, 2011 in Monaco. AFP PHOTO

PHOTO: EAST NEWS/AFP Le Prince Rainier de Monaco (G) et son ??pouse, la Princesse Grace, posent pendent l'??t?? 1979 ?. Roc Agel au dessus de Monaco.

PHOTO: EAST NEWS/AFP A file photo dated 14 September 1962 showing Grace Kelly and Prince Rainier of Monaco during their wedding ceremony in Monaco.

PHOTO: EAST NEWS/AFP Princess Grace and her husband Prince Rainier of Monaco arrive 19 July 1958 at Monaco Sporting Club for the annual Red Cross gala ball.

PHOTO: EAST NEWS/AFP Le Prince Rainier de Monaco (G) et son ??pouse, la Princesse Grace, saluent la foule venue les accueillir, le 11 septembre 1956, ?. leur arriv??e ?. New York.

Prince Rainier III of Monaco and Grace Kelly dance at a party at the Formentor Yacht Club, near Puerto Pollensa on the island of Mallorca off the coast of Spain, on April 23, 1956, during their honeymoon. (AP Photo)

PHOTO: EAST NEWS/AFP Photo officielle du mariage religieux, le 19 avril 1956, du Prince Rainier de Monaco (D) et de la Princesse Grace ?. Monaco.

Prince Rainier III of Monaco, places a ring on the finger of American movie star Grace Kelly of Philadelphia during their wedding ceremony in Monaco Cathedral on April 19, 1956. (AP Photo)

Prince Rainier III and his bride, actress Grace Kelly, leave Monaco's Cathedral after a religious wedding ceremony, April 19, 1956. The couple passed through an honor guard formed by members of the prince's guard. (AP Photo)

TO GO WITH AFP STORY BY CATHERINE MARCIANO (FILES) Prince Rainier III of Monaco and US actress and princess of Monaco Grace Kelly salute the crowd as they leave Saint Nicholas Cathedral after their wedding ceremony in Monaco on April 19, 1956 in a convertible cream and black Rolls Royce offered by the people of Monaco as a wedding gift. Prince Albert and his South African fiancee Charlene Wittstock, an Olympic swimming star, will celebrate their wedding over two days on July 2 and 3. In Monaco, commentators are convinced that the marriage of Prince Albert will be an even bigger event than his parents' 1956 wedding, which saw prince Rainier tie the knot with US film star Grace Kelly. AFP PHOTO

TO GO WITH AFP STORY BY CATHERINE MARCIANO (FILES) - A photo taken on April 19, 1956 shows US actress Grace Kelly and Prince Rainier of Monaco during their wedding ceremony in Monaco. Prince Albert and his South African fiancee Charlene Wittstock, an Olympic swimming star, will celebrate their wedding over two days on July 2 and 3. In Monaco, commentators are convinced that the marriage of Prince Albert will be an even bigger event than his parents' 1956 wedding, which saw prince Rainier tie the knot with US film star Grace Kelly. AFP PHOTO

PHOTO: EAST NEWS/AFP Mariage religieux du Prince Rainier de Monaco et de l'actrice am??ricaine Grace Kelly ?. Monaco le 16 avril 1956.

PHOTO: EAST NEWS/AFP Mariage religieux du Prince Rainier de Monaco et de l'actrice am??ricaine Grace Kelly ?. Monaco le 16 avril 1956. 000_ARP2590549

PHOTO: EAST NEWS/AFP Le Prince Rainier de Monaco (G) et sa fianc??e Grace Kelly posent le 12 avril 1956 lors du retour de l'actrice am??ricaine dans la principaut??.

PHOTO: EAST NEWS/AFP Photograph dated 27 February 1956 of the dummy of the stamp to be issued by Monaco Stamp Office for the wedding of Prince Rainier with US actress Grace Kelly to be held 19 April 1956.