Sparkling Cyanide

This adaptation of Agatha Christie's novel Sparkling Cyanide (aka Remembered Death) by Sue Grafton (yes THAT Sue Grafton),Steven Humphreys and Robert Malcolm is a a great mystery movie. Not completely faithful to the original--the movie opens prior to Rosemary's death instead of one year after, Southern California vs. WWII England--but the main elements of the story are there, and it's a tight, well-written adapting of the plot. I've seen the movie many times and recently re-read the book and I couldn't say which I prefer.