The Palme d'Or is the highest prize awarded at the Cannes Film Festival. It was introduced in 1955 by the festival's organizing committee. Previously, from 1939 to 1954, the highest prize at the festival was the Grand Prix du Festival International du Film. In 1964, The Palme d'Or was replaced again by the Grand Prix, before being reintroduced in 1975.

The Palme d'Or is widely considered to be one of the most prestigious awards in the film industry.

In 1955, the first Palme d'Or was awarded to Delbert Mann for Marty. From 1964 to 1974, the Festival temporarily resumed a Grand Prix. In 1975, the Palme d'Or was reintroduced and has since remained the symbol of the Cannes Film Festival, awarded every year to the director of the winning film, and presented in a case of pure red Morocco leather lined with white suede.

As of 2018, Jane Campion is the only female director to have won the Palme d'Or, for her work on The Piano. However, in 2013, when Blue Is the Warmest Color won the Palme d'Or, the Steven Spielberg-headed jury awarded it to the film's director Abdellatif Kechiche, as well as the film's actresses Adèle Exarchopoulos and Léa Seydoux. This marks the first time multiple Palme d'Or trophies were given out in the festival's history.

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