For 12 days this week, the eyes of the movie world will be on the Cannes Film Festival. The Cote d’Azur spectacular will play host — starting on Tuesday — to some of the most anticipated movies of the year in a constant parade of red carpets and megawatt premieres. This year, Hollywood studios are mostly on the sidelines. But for more than 78 years, Cannes has been an unparalleled showcase, and sun-dappled circus, for some of the best in cinema. Last year that included Oscar nominees and...