'Mission: Impossible - Ghost Protocol' trailer: Tom Cruise vs. the world's tallest building

mission-impossible-4-traile.jpgConfession: Until the first trailer for "Mission: Impossible - Ghost Protocol" hit the web on Wednesday (June 29), we were only mildly aware that a fourth "M:I" film was in the offing, let alone hitting theaters just before Christmas.

Now that we've seen the trailer, though, we're not only signficantly more aware of the movie's existence but also pretty impressed with what we see.

Tom Cruise is back as the impossible mission-having Ethan Hunt, and his "M:I-III" co-star Simon Pegg returns as well. Jeremy Renner and Paula Patton also star, along with Tom Wilkinson, "Lost's" Josh Holloway (glimpsed ever so briefly in the trailer) and Anil Kapoor of "Slumdog Millionaire" (not seen at all). The "Ghost Protocol" in the title apparently refers to Hunt and his IMF cohorts being purged from official existence after the Kremlin (yes, the whole freaking Kremlin) blows up.

Also of note: "Ghost Protocol" is the live-action directing debut of Brad Bird ("The Incredibles," "The Iron Giant"), who from the looks of things is comfortable with the big set pieces. The shots of Cruise scaling the Burj Khalifa, the world's tallest building, in Dubai are knockouts.

The trailer is below -- do you like what you see?

Photo/Video credit: Paramount