I re-read 4:50 from Paddington (or What Mrs. McGillicuddy Saw) by Agatha Christie because I had recently watched a new production of it staring Geraldine McEwan, which had some different details from the version with Joan Hickson, and I wanted to check them against the original. Of course, by the time I read the book, I had forgotten the two movie versions. Expect a comparison review at some point in the future when I have time to watch the movies again.