If you are a fan of any of the main actors, you will like this film.
If you enjoy seeing Paltrow pose in refined interiors in expensive clothes, or very few clothes, as she talks through clenched teeth, this is a movie for you.
If you enjoy watching Douglas' subtle mastery of the acting art, and lending depth to a character that in lesser hands would be as flat as wallpaper, this is a movie for you.
If you enjoy watching Morgenstern sporting medieval hygiene and chewing the scenery, this is a movie for you.
If you enjoy lamenting that the always-remarkable Suchet is woefully underused, this is a movie for you.
But...
If you like movies that are intelligently scripted, plotted, cast and/or directed, this is not a movie for you. Save your time and money and rent the original "Dial M for Murder" instead.