Kaouther Ben Hania's The Voice of Hind Rajab caused an international outcry at last year's Venice film festival – a fact that the Oscar-nominated Tunisian director prefers to play down. "I'm a director. I don't usually like to talk about my films," she said. But this time was different. There was an unusually heavy burden of responsibility.

Actors who play someone with Tourette syndrome have to take a huge step out of their comfort zone. Robert Aramayo accepted that challenge when he was cast as John Davidson in I Swear.