Sean Penn plays in "Black Flies", a thriller by Frenchman Jean-Stéphane Sauvaire. Penn plays an experienced New York emergency doctor who will have to team up with a young paramedic.

The 62-year-old actor has experienced everything in Cannes: the ovations for his films, "The Pledge" in 2002 and "Flag Day" in 2021, the frosty reception for "The Last Face", in 2016, and even the acting prize for "She's so lovely", in 1997.