Fire At Sea's director Rosi: "Millions of people are arriving. No walls can't stop this"

The film director of "Fire At Sea" (Fuocoammare) Gianfranco Rosi talks about his documentary, the migrant crisis in the Mediterranean Sea and the impact of Brexit. The film runs for the Oscar best foreign-language 2017. I met Rosi last March in London during the "Cinema Made in Italy" festival.