* Jean Cocteau: (1889-1963) French poet, playwright, designer, filmmaker, and painter. He was a prominent figure in the surrealist movement and is considered one of the most important figures in 20th-century French art.
* Pierre Schoendoerffer: (1928-2012) French film director, screenwriter, and producer. He was known for his war films, notably "The 317th Platoon" (1965) and "The Last Bridge" (1990).
* Alain Delon: (born 1935) French actor. He was a prominent figure in the French New Wave movement and is considered one of the most iconic actors of the 20th century. (However, he was actually born in Sceaux, near Paris, and is not officially from Cannes.)
* Jean-Michel Jarre: (born 1948) French composer and electronic music pioneer. He is known for his large-scale, spectacular live performances and for his pioneering work in electronic music.
* Serge Gainsbourg: (1928-1991) French singer, songwriter, musician, and actor. While he wasn't born in Cannes, he lived there for a period of time and his daughter, Charlotte Gainsbourg, was born there.
It's worth noting that Cannes is a popular tourist destination and many famous people visit the city, particularly during the Cannes Film Festival. While not born there, you'll likely find many stars passing through!