Miss Marple
There had been a series of Miss Marple films in the 1960s starring Margaret Rutherford. Hamilton said Rutherford "was a divine clown but she was no more Miss Marple than... fly to the moon. We are doing Miss Christie's Miss Marple, a more serious person, a gossip, a bit of a snob. And she doesn't fall off her bicycle into the village duckpond."