The best Leo McKern’s crime movies

After spending decades living in the shadow of his more famous and successful sibling, Consulting Detective Sigerson Holmes (Wilder) is called upon to help solve a crucial case that leads him on a hilarious trail of false identities, stolen documents, secret codes... and exposed backsides.

When Miss Marple arrives at palatial Stonygates, one thing is certain. Before there's time to lather a warm scone with marmalade and place a tea cozy, murder most foul is bound to occur. Helen Hayes returns as spinster sleuth Jane Marple and Leo McKern plays the crafty inspector who teams with her in this engaging, twisty case of country-house intrigue. Someone may be slowly poisoning the aging lady of the manor (the great Bette Davis in one of her last roles). Everyone but her dutiful husband (John Mills) has a motive. The snappish housekeeper? The pompous school kid? The gun-collecting American? The uneasy psychiatrist? The embittered daughter? It could be one of them. Some of them. None of them. People are dying - but not the elderly grand dame of Stonygates!

Alec Graham is sentenced to death for the murder of his girlfriend Agnes, with whom he spent a weekend at the English country home of the parents of his friend Brian Stanford. Alec's father, David Graham, a not-so-successful writer and alcoholic who has neglected his son in the past, flies in from Canada to visit his son on death row. David then goes on a quest to try and clear his son's name while battling "the bottle."

Philip Scott, the boss of a toy company, is secretly also the chief of a British spy organization. Scott's cover is destroyed when enemy agents kidnap his girlfriend to force him to reveal the identities of his fellow spies.

An English professor decides that there are too many useless people in the world and invents a gas that will kill them off. But first they'll at least have a good laugh.