The movie is highly underrated. It was beautifully shot, entertaining and gripping from the first to the last minute. Emily Blunt gives an amazing and convincing performance, as do all her co-stars.

It was not my cup of tea,i really could not understand what was going on in the movie. i found it really boring, there was lots of talking about love which wasnt intersting to me! i probably would prefer the book.

A good solid thriller you don't get to see that often any more, at least not from a big production with stars acting. It's hard not to give away any spoiler about what is going on so I will keep this very short. The butler did it! I kid, I kid. The movie is about a woman who is not at the best time of her life, who notices something outside the train she is riding. From then on it goes on a roller-coaster (sorry) of emotions and information for the viewer. It manages to keep you on your toes about what is going on and doesn't let go till the end as with all good thrillers. It's a solid movie that while it has some points it is trying to make that could be seen in a negative way, it still manages to entertain.

Loved the book? This has very little to do with that. An almost all American cast, not set in the UK and lacking any of the information about character that gives depth and thus makes the story addictive. Overly sexualised - except where it mattered and major plot development left out making the film a bit vague... Had high hopes, totally disappointed apart from Emily Blunt who was superb. Two hours of your life that would be much better spent reading the book!