Twenty years after it was turned down for selection by the Cannes organizers, Oliver Stone's Vietnam drama "Platoon" will screen at the 2006 edition of the festival next month to coincide with a DVD re-release. At the same time, festival organizers announced in Paris that French actor Vincent Cassel will serve as master of ceremonies for the 59th annual event, and will host the opening and closing ceremonies on May 17 and May 28. Stone will attend the festival for the May 21 screening along with most of the major cast members of "Platoon," which won four Oscars in 1986, including best picture and best director. Reuters reports.