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Jonathan Lethem talks about his latest novel Dissident Gardens. It's an epic family novel criss-crossing generations from the '50s to the present day, focussing on Rose, an American Communist. Based on his own upbringing and radical grandmother, Lethem describes how even as a youngster he guessed he'd never be able to stand for President, as there surely would have been a 'problem with my files'.

This weekend the final two episodes of The Bridge are screened on BBC4. The series, which has spawned many international remakes, follows a Swedish and a Danish detective working on a case together, and explores the cultural differences that inform their relationship. Sofia Helin and Kim Bodnia, aka detectives Saga Nor\\xe9n and Martin Rohde, discuss the surprise popularity of the show and the challenges of acting with someone who is speaking a different language.

This week a crisps manufacturing company admitted they had used a photograph of the late Welsh poet R.S. Thomas to advertise a competition on their packets, without knowing who he was. Thomas's biographer Byron Rogers reflects on the strange case of the poet and the crisp packet.

Many of this year's Oscar contenders claim to be 'based on a true story', among them 12 Years a Slave, Philomena, Saving Mr Banks, Captain Phillips and The Wolf of Wall St. Adam Smith has been digging around and begs to take issue with the veracity the film-makers claim.

Producer Stephen Hughes.