Based on the book, not on the other films.

Rating: 8/10 (13 January 2018)

I saw this film before reading the book, or watching the other films, so I could judge it first as it's own thing. And I liked what I got. The acting in my opinion is very nice, especially with Josh Gad. The mystery is also good. Even when I figured it out, I found myself enjoying to see the characters trying to solve it. One of my favourite things in the movie was the music. It creates a wonderful mood and really stands out. I actually stayed alone in the cinema through the credits, because of the music. Although the song by Michelle Pfeiffer wasn't that good.
After seeing the film, I read the original book to compare them, and to be honest this movie is a pretty good adaptation. There were some differences, like in the book Colonel Arbuthnot and Dr. Constantine are different characters, but in the movie Arbuthnot is also a doctor, so we don't have Constantine at all. There is also some added action in the film.
These little changes did not bother me, but one downside of the film would perhaps be Poirot himself. He is a much nicer and warmer character in the book. The acting is still good. His personality is just a little off.
Overall I think this is worth seeing!