I have to admit, Sebastian's posts excepted, I'm really puzzled by the overall enthusiasm the film's getting. Yes, it was bigger than the "made for TV" M:I3 (a criticism I don't agree with) but I think the film failed utterly to create or develop any sort of stake for the viewer. And yes, the Dubai tower sequence was really fucking cool....but so what? Was there ever really any chance of Hunt dying? Was there a reason for the audience to care?
Bird's direction here was spotty, or at least inconsistent. The action was exceptionally well done, and I easily spotted Bird's style of inserting humor unexpectedly in normally tense action beats. However, the script and film did not or could not generate actual empathy or depth for the characters. In the case of Pegg and Renner, I am confident in saying the problem isn't with the actors; they're both demonstrably capable of portraying characters with depth and nuances. In the case of Patton and Cruise, we're dealing with charismatic actors with strong screen presence but limited range. The material did not do Cruise any favors, and I'm still amazed at how, after four films, Ethan Hunt's remained basically an empty cipher. I absolutely admire Cruise's dedication to his craft, especially wanting to do as much of the physical stuff as possible, and he remains a formidable action star, despite being in his early 50s.
But to me, the film has failed when just about every secondary character is infinitely more interesting than the main one. Hell, I wanted to know a LOT more about the Russian cop/intelligence agent following Cruise, and he was written and portrayed with more character than anyone on the main team, Pegg's character excepted.
I also thought the denouement came across as far too heavy handed and it robbed itself of the impact it wanted to have. I am glad that Hunt's (ex)wife was alive; having her die offscreen felt like exceptionally lazy writing.
Despite sounding really hard on the film, I'm not terribly hard to please for action films. However, given 1) the caliber of the collaborators and 2) the film's inability to give us something more than expository lines to care about the characters, it ended up just being spectacle strung together by very flimsy connecting tissue.
My initial reaction on seeing this was, "OK/meh," but it's a movie that I think simply does not hold up to further examination. I'll be really interested to seeing what a few months and a second viewing produces in folks here.