I remember this book - I decided to watch the movie. I have a love/hate relationship with Agatha Christie. I will admit I had a fun time in the theatre. The movie gave me everything I had hoped for with a plot twist. There were some changes, but they actually worked. I recommend seeing it and I just might reread it. I give the movie 4/5 - there are some slow parts, but if you have seen “Express” than you will understand the tempo.