The film is playing now in New York and opening in Los Angeles next week.
French director Jacques Audiard was inspired by the basic idea of Sam Peckinpah's classic "Straw Dogs" for the story, but decided to set "Dheepan" in France.
The setting establishes both cultural and language barriers for his three outsiders who unwittingly find themselves in yet another violent situation - a suburban housing project with a gang presence - despite their efforts to create lives of relative normalcy and peace.
"What happens to them when they arrive at a different place carrying the experience of being raped, of being tortured, of living with trauma and violence? How does the subconscious work out this violence?" he said.
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"To negate the violence that they carry in them is a form of racism. It's denying the experience of violence that they carry with them. In that frame of mind they'd just be poor travelers and they're not."
So he had to think outside of the box and consider nonprofessional actors to keep the casting authentic. In France, he found both his lead actor, author Antonythasan Jesuthasan, a former teenage Tamil Tiger who found refuge in France, and the young girl who becomes his de facto daughter in the new arrangement, Claudine Vinasithamby.
Anchoring a film with mostly unprofessional actors speaking in a non-native language proved to be quite an interesting challenge for Audiard, who would sometimes do 20 takes for a scene - quite different from his experience working with stars like Marion Cotillard and Matthias Schoenaerts for his last film, "Rust and Bone.