The Dock Brief

The Dock Brief US title Trial and Error is a 1962 blackandwhite 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.

Afteryears of undistinguished practice Wilfred Morgenhall Sellers, a cynical and unsuccessful barrister, is overjoyed to be assigned a dock brief the defence of an accused murderer.His client Herbert Fowle Attenborough, is a meek man who wants to plead guilty to murdering his wife. Through a series of courtroom scenes and flashbacks the leadup to the crime unfolds, involving Fowle taking in a lodger David Lodge, who takes a morethanpassing interest in Mrs. Fowle Beryl Reid. Morgenhall, given an opportunity to shine for the first time in his life, insists on pleading his client not guilty. ........

Source: Wikipedia