I love this book and I didn´t know the ending back when I read it for the first time :). I´m currently listening to the audiobook, rereading it before watching the upcoming new movie.
I'm looking forward to the book club meeting and seeing what everyone else picked up on. I don't think most of the people in the club ever read mysteries - or have ever read Christie - so I figure I'm either in for an awesome club meeting or a supremely disappointing one where I discover my fellow club members are all philistines. ;-)
I haven't read half as much Agatha Christie as I should and feel properly embarrassed about that. Lovely review! I don't even know how it ends so I suppose I should get to it haha
If you enjoy mysteries and Christie, definitely give it a go before someone tells you how it ends (especially with the movie coming out soon... or already?). :)
I second MbD's recommendation. :D It works better in the book because so far each adaptation I have seen has either interpreted the tone of the story (especially the ending) different or taken some other liberties.