The MI movies are entertaining, but I was over it in the first one, when he removes the realistic mask. Once you have that, you can just do/be whatever you want.
That's why I don't like too much magic in a movie - you can just do anything. Limits are a good thing. A confined universe where there are rules and limits makes it better.
In the MI series, anyone can actually be anyone else, and while that might appeal to some people, I just see it as a giant stack of get-out-of-jail-free cards. It's not fun anymore.
