When you think you have seen everything about AI movies, Ex Machina arrives and gives a very nice perspective on the matter.
The movie goes quick, not many things happen but they are clever, very well thought. The story is more focused in the moral problems of the human main character rather than in the awe of the creation nor the existencial problem of the AI.
The cast is all great, from Vikander to Mizuno, Glee and great Oscar Isaac.
A real must to watch if you are into the topic.