Memento
My first encounter with this movie was as a reccomendation.
The concept is smart and very good, it takes only a few scenes to realise it's trick and it will always remind you that it's basically backwards. Thinking back it was a fresh and smart idea.
The main character was great and the whole idea that he's just a confused serial killer is very very good.
Full of "aaaha" moments ( this is the most important part of the movie because it's always rewards you after a short time due to the concept - backward movie ).
Cinematographically it was good, for me the concept took away all my attention. ( Sorry )
Very good concept