How many movies have Agatha Christie and Joan Hickson collaborated on?

They have worked on 8 movies together! Their first movie together was Love from a Stranger (1937) while their highest rated movie together was Miss Marple: The Mirror Crack'd from Side to Side (1992). They have not worked together since Miss Marple: The Mirror Crack'd from Side to Side (1992). They are most known for their mystery films together.