The Joker, starring Joaquin Phoenix, has taken the top Golden Lion prize at the Venice Film Festival.
Director Todd Phillips' film about the comic villain, starring Joaquin Phoenix, is already being tipped for the Oscars.
Roman Polanski won the Grand Jury Prize for An Officer and a Spy, despite controversy over of its inclusion.
The director was convicted of statutory rape in 1978 and has faced various other allegations of sexual assault.
Polanski did not attend the ceremony. His wife Emmanuelle Seigner, who stars in the film, took to the stage instead.