The 17th Cannes Film Festival was held from 29 April to 14 May 1964. On this occasion, the Palme d’Or was renamed "Grand Prix du Festival International du Film", a name that remained in use through 1974, after which it became the Palme d'Or again.... Wikipedia
Dates: Apr 29, 1964 – May 14, 1964
Location: Cannes
Awards: Grand Prix du Festival; International du Film; (Les Parapluies de Cherbourg)
Opening film: Cent mille dollars au soleil