This review contains spoilers, click expand to view. So first of all, I want to say that I loved this movie, but I do get the hate on it, for it's controversial plottwist.
But there are some reasons why some fanboys shoud NOT be so angry about it;
- first of all, the fake mandarin was set up, to not set up a racist stereotype and more of like a fun character.
- aldrich killian revealed that he was the real mandarin, he even had some dragontattoos across his chest.
- a big part of the fanbase was angry at Tony throwing his arc reactor away at the end, but Tony states that he is still Iron Man and he picks up one of the extremis holders, which will likely mean that he will build an extremis suit, powered by repulsor technology (which has also been confirmed as the new energysource for the suits.) and this will set up a suit that will allow Tony to go into space with it, and this will probably set up the bridge between guardians of the galaxy and avengers 2.
so for me this was a very good movie, and I think they've done a great job with expanding the MCU even further