Cannes organizers said in a statement Tuesday that "50 years after her death, Marilyn remains one of the major figures of world cinema, an eternal and contemporary reference of grace, mystery and seduction."
The poster shows the American actress, eyelids lowered and lips pursed, blowing out a candle on a birthday cake.
The 65th Cannes Film Festival runs from May 16 to 27.
Nanni Moretti, the satirical Italian filmmaker and 2001 Palme d'Or winner, heads the jury at this year's festival on the French Riviera.
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