This book is noticable for the late appearance of Miss Marple, who doesn't apear until the last quarter of the book.
Mona Symmington - Poisoned
Agnes Brown - Hit over the head, then stabbed
The Moving Finger was split into two parts in the US and aired on July 9th and 16th.
Stephen Churchett, the writer for several episodes, has a cameo in this episode as a coroner. He previously played a coroner in The Murder at the Vicarage.
This episode is based on the novel of the same name first published in 1943. Agatha Christie said this was one of her favourites.
David Suchet was supposedly going to guest star as Hercule Poirot in this episode, but this was later deemed just a rumour.