Gripping while a bit confusing

Rating: 8/10 (20 June 2018)

Shortly, I was really fascinated how quickly I got used to the 'world' of that movie and the characters, I immediately wanted to know about them. The narrative was great and all the events kept me on the edge of my seat. Christian Bale was absolutely amazing and convinced me that he is unstable very well.
The ending left me confused and I just wanted to know if it actually happened or it was just a dream. Even though the director said that she was aiming to make it seem very ambiguous, I reckon that it was going more towards the idea of it all being in his head, although I was looking for reassurance. So the director's choices at the end a bit disappointed me.
Very excited to read the book, as I did not realise one existed.
Great movie.