Murder She Said (1961) - ‎Margaret Rutherford, Arthur Kennedy, Muriel Pavlow, James Robertson Justice

Murder mystery based on Agatha Christie's 1957 novel "4.50 from Paddington". Through her carriage window, Miss Marple witnesses the murder of a young woman on a passing train. The local police dismiss her story as the ramblings of a dotty old woman. Undaunted, she decides to conduct her own investigation.