Free Thinking: La La Land and Hollywood - past and present

Agent to stars including Humphrey Bogart, Clancy Sigal looks back at the absurdities of the 1950s movie business. Catherine Wheatley and Larushka Ivan Zadeh discuss the new musical La La Land starring Emma Stone and Ryan Gosling which is picking up many of the prizes in the film awards season and look at Hollywood's preoccupation with its own back yard. Authors Dennis Bartok and Jeff Joseph lift the lid on the bizarre world of obsessive film collectors.

Clancy Sigal's autobiography, Black Sunset is out now.

A Thousand Cuts: The Bizarre Underground World of Collectors and Dealers Who Saved the Movies by Dennis Bartok and Jeff Joseph is out now. La La Land is out in cinemas across Britain from January 13th certificate 12A

Producer: Craig Templeton Smith.