The Palme d’Or was awarded to Jacques Audiard for his film that sees a Tamil Tiger use the know-how he picked up from fighting the Sri Lankan Civil War to survive the hardships and difficulties faced by immigrants living in the suburbs of Paris. Dheepan is a radical and astonishing film that turns conventional thinking about immigrants on its head, and takes a faceless immigrant coming from a war barely covered in the media and turns him into a Travis Bickle-type anti-hero.

The decision from the Cannes film festival jury jointly presided over by the Coen Brothers to award the unfancied outsider the top prize was met with boos. Cameron Bailey, the black Artistic Director of the Toronto Film Festival, suggested in a tweet that the colour of the protagonist might have been a factor in the failure of many critics to recognise the brilliance of the film. He wrote: "Dheepan hit me hardest at #Cannes but it left others cold. Partly a question of how and where we identify at the movies."

I can only agree with him. The story sees an immigrant arrive on a false passport, with a woman and a child he barely knows, claiming that they are his wife and daughter, and then slowly overturns our expectations to create an unlikely love story and a violent action film, the process making this immigrant family the heroes. It is the most radical and bold film in Cannes.

The jury in voicing their decision said that they were a "jury of artists and not critics" and mostly they seemed to be paying tribute and acknowledging the virtuoso film-making that has seen Jacques Audiard called the ‘French Scorsese’ for a number of years.

Audiard is a master of celebrating the outsider, his heroes are often from the lower depths of society, from the gangster in The Beat That My Heart Skipped, to the Arab who goes to jail and becomes a mafia kingpin in A Prophet, the critically acclaimed film that won a BAFTA for Best Foreign Film in 2010. But the Arab in A Prophet was easier to understand, he was a Scarface type figure, who embraced the culture of the mainstream, but used his minority roots when it suited him. Dheepan offers no such concessions.

Audiard has also chosen a non-professional actor to play the titular character. Jesuthasan Antonythasan is an author who comes from a similar background to Dheepan. He fought for Liberation Tigers of Tamil Eelam, and was jailed in numerous countries before seeking asylum in France in 1997, aged 25. His only previous cinematic experience was writing and starring in Sengadal (The Dead Sea), which was banned in India.