Movies with Rhianna

On this week's Friday edition of Radio 1's Screen Time, Ali talks to the Oscar-nominated screenwriter of 1917, Krysty Wilson-Cairns, about her favourite movie scripts ever. Plus! Catherine Bray stops by to talk about this week's 'Ali Plumb's Film Club' pick, Ex Machina, as we announce next week's "homework": the amazing Jake Gyllenhaal thriller Nightcrawler...