David Fincher on Gone Girl; Clint Mansell; George Szirtes; London Film Festival

With Francine Stock.Director David Fincher reveals how he adapted the best-selling thriller Gone Girl for the big screen and why he's not worried that seven million readers already know the plot's infamous twist.Lux Aeterna composer Clint Mansell discusses the pleasure and pain of writing for Hollywood and what he really thinks about having his music replaced by somebody else's score.Poet George Szirtes reviews the poetic realism of Le Jour Se Leve, written by Jacques Prevert and considered one of the masterpieces that inspired 40s film noir, with its heady mix of romanticism, cynicism and fatalism.With 248 films in 12 days, the choice of movies in the BFI London Film Festival may seem slightly daunting, so its director Clare Stewart discusses the LFF programme.