The Jacques Audiard-directed 'Dheepan' has claimed the top prize at the 68th Cannes Film Festival, the Palme d'Or. The Jacques Audiard-directed drama, which centres on refugees fleeing post-civil war Sri Lanka for a life in France, surprisingly claimed the coveted award after being selected by a judging panel led by acclaimed US filmmakers Joel and Ethan Coen. The French director, whose previous credits include A Prophet and Rust and Bone, told the BBC: ''To receive a prize from the Coen brothers is something pretty exceptional. I'm very touched.'' Meanwhile, Joel Coen said: ''This isn't a jury of film critics. This is a jury of artists who are looking at the work.'' Elsewhere, Son of Saul - a Holocaust drama - won the Grand Prix prize, which is essentially the runner-up award, while Vincent Lindon won Best Actor for his role in Stephane Brize's The Measure of a Man and Rooney Mara and Emmanuelle Bercot shared the Best Actress gong. Son of Saul was directed by Hungarian newcomer Laszlo Nemes, who reflected: ''This continent is still haunted by this subject.'' Top award winners from the 68th Cannes Film Festival: Palme D'Or: Dheepan Grand Prix: Son of Saul Jury Prize: The Lobster Best Director: Hou Hsiao-hsien Best Actor: Vincent Lindon Best Actress: Rooney Mara and Emmanuelle Bercot Best Screenplay: Michel Franco, Chronic Camera d'Or (Best first feature): La Tierra Y la Sombra..