The Dock Brief The Dock Brief The Dock Brief (US title Trial and Error) is a 1962 black-and-white British legal satire directed by James Hill, starring Peter Sellers and Richard Attenborough, and based on the play of the same name written by John Mortimer (creator of Horace Rumpole). The film had its world premiere on 20 September 1962 at the Plaza Theatre in London's West End. Richard Attenborough was nominated for the 1963 BAFTA Award for best British actor for his role. In a cell under the Old Bailey, two men meet. One is Wilfred Morgenhall, an unmarried barrister who never gets any
John Mortimer in 1975. Although not Mortimer's first choice of actor (in an interview on the DVD set, he said he wanted Alistair Sim -- "but he was dead"), Leo McKern played the character with gusto and proved popular; accordingly, the idea was developed into a series, "Rumpole of the Bailey", for Thames Television in which McKern again took the lead role. Mortimer also wrote a series of Rumpole books. In September–October 2003, BBC Radio 4 broadcast four new 45-minute Rumpole plays by Mortimer with Timothy West in the title role. Mortimer also dramatised many of the real-life cases of the barrister