I really enjoyed the novel and was expecting to enjoy the movie version, but I found it curiously dull as compared to many of the other adaptations. No Captain Hastings and a mouse. This mouse, while cute, appeared far too often - crawling around the clock, arriving in rooms at the precise moment they were murdered, even acting as a catalyst in the climactic scene. The real interesting aspects of the book, and much of its humor, came from Dame Agatha's casting of these motley group of students. As a product of her time, she had used racial epithets in her earlier works that American publishers changed because they were offensive. She changed though. Watching her evolve with the times, and reflect those times in her novels provides a fascinating look at the social evolution of the 20th century. She has a lesbian couple in "A Murder is Announced" and in Hickory Dickory Dock - she had Ram Lal - an Indian student, very political yet polite and the extremely charming and affable Akibombo from Africa. However, these were the two characters that were cut from the adaptation. They did not have large dramatic parts which made them more expendable, but they added warmth and humor to the assemble that made the book very charming. The group of students in the movie seemed simultaneously dull and unattractive personality-wise although they were supposed to have a lot of camaraderie as young folks all living under the same roof. The mystery itself was secondary in this story - so not top-shelp Christie who-done-it in my opinion. The humor and interest in the movie are the trials and tribulations poor Japp endures as Poirot's house-guest. Miss Lemon has a larger part this time, and is a constant presence. And finally - the trying-not-to-be-horrified looks Japp and Poirot try to suppress as each tries to impress the other with their native cuisine is priceless. Too few and far between though - unless you're a huge Christie fan, I would suggest exploring the other movies first.