Mission: Impossible-Ghost Protocol

I saw the movie, "Mission: Impossible – Ghost Protocol".
It's a 2011 American action spy film directed by Brad Bird and written by Josh Appelbaum and André Nemec.
Starring Tom Cruise, Jeremy Renner, Simon Pegg, Paula Patton, Michael Nyqvist, Anil Kapoor and Léa Seydoux.
It is the fourth installment in the Mission: Impossible film series.
Box office is $694.7 million. Big hit!

First, do you know what "Ghost Protocol" of this title means?
In the story, the President had initiated "Ghost Protocol", disavowing IMF.
That means IMF-Impossible Mission force-doesn't exist officially----the agents of IMF are ghost.
Why is this horrible situation?

Let's see the story.
An IMF agent is killed by assassin Sabine Moreau.
Then she takes the file of Russian nuclear launch codes
from him to sell it to a man known only as "Cobalt".
Ethan Hunt is incarcerated in a Moscow prison to collect information on Cobalt.
And with the help of Jane Carter and newly promoted field agent Benji Dunn, Hunt make his escape.
IMF tasks Hunt to infiltrate the Kremlin to gain more information on Cobalt.
But the Kremlin is destroyed by a bomb and Hunt's team aborts the mission and escape.
But Hunt is captured by SVR and charged with destroying the Kremlin.
Hunt escapes and meets with the IMF Secretary.
He tells Hunt that he is charged with destroying the Kremlin. So the President had initiated "Ghost Protocol", disavowing IMF.
Here!
Wow, scary.
And you know what?
The secretary secretly orders Hunt to continue to pursue Cobalt.
Hunt identify Cobalt as Kurt Hendricks, a Swedish-born Russian nuclear strategist, who seeks to start a nuclear war between the U.S. and Russia!

Hendricks bombed the Kremlin to hide his theft of a Russian launch-control device.
Moreover he is planning a trade with Moreau at the Burj Khalifa in Dubai to gain the required launch codes.

Ethan and the IMF team go to the Burj Khalifa in Dubai
to to stop Hendricks.

Did you know?
That famous scene, Tom's climbing of building is here!
The scene is very popular and many fans want to see and
want to do themselves, I guess.
I saw a video of shooting of this scene-----it looked
like Tom was really climbing the real building of Burj Khalifa.
I'm not sure but---
I wonder he truly did that? Really?
But wasn't it too dangerous?
I pray it isn't true. Maybe I misunderstood.
It's too much to be true.

Anyway, in this film Tom's actions are outstanding, as usual.

Now, he seems to start shooting I:M-8 or just preparing.
I'm looking forward to seeing his wonderful actions but
at the same time I'm so worried about of dangerous shooting.