Leonardo DiCaprio came on the stage at the 2025 Cannes Film Festival to celebrate his long-time mentor Robert De Niro, the recipient of the most coveted honorary Palme d’Or, throughout his lifetime.

(Photo by Lewis Joly/Invision/AP) Honorary Palme d'Or recipient Robert De Niro poses for photographers during a photo call at the 78th international film festival, Cannes, southern France ...