Okja, a new Netflix feature film about a young girl in the South Korean mountains raising a giant pig, stars Tilda Swinton and the young Korean actor An Seo Hyun. The film was co-written by the British author and journalist Jon Ronson, who discusses the film and his career.

It's 20 years on Monday since JK Rowling's first Harry Potter book was published and a whole generation of millennial Muggles have grown up with him in books, films and on stage. To mark the anniversary Front Row asks Tim Burke, the visual effects supervisor on most of the Harry Potter films; Viv Groskop, comedian, writer and parent; Rhianna Dhillon, film critic and self-confessed Potter nerd; Jonathan Douglas, Director of the National Literacy Trust; and the pupils of Oasis Academy in Salford what Harry means to them, and whether a world in which he'd never been created is even imaginable.

Among the many victims of the Grenfell Tower fire was the 24-year-old artist and photographer Khadija Saye. Her images attracted international attention recently when they were featured in the new Diaspora Pavilion at the Venice Biennale, which opened last month and showcases work by established and emerging artists. The Pavilion's curator David A Bailey and Khadija's mentor, the artist Nicola Green, remember their friend and discuss the nature of her work.

Presenter: John Wilson