Which 2002 film by Roman Polanski won the Palme d'Or at Cannes?

The 2002 film by Roman Polanski that won the Palme d'Or at Cannes was The Pianist.

The film premiered in competition at the 55th Cannes Film Festival, held from May 15 to 26, 2002. It won the festival's top prize, the Palme d'Or, awarded by a jury headed by director David Lynch. The film also earned Polanski the Best Director award at the European Film Awards later that year.

The Pianist is a Holocaust drama based on Polish-Jewish pianist and composer Władysław Szpilman's memoir. Adrien Brody plays Szpilman, who struggles to survive in Nazi-occupied Warsaw. The film's historical setting and Polish connection are sometimes confused with the director's nationality: Polanski was born in Paris and grew up in Poland, but the film was an international production.

The 2002 Cannes lineup also included Bowling for Columbine and Punch-Drunk Love, but neither won the Palme d'Or. The Pianist later won three Academy Awards, including Best Actor for Brody.