First Look At Tom Cruise's Crazy Stunts In Mission: Impossible 4

We already knew Tom Cruise did his own stunts in Mission: Impossible - Ghost Protocol, and here's our first peek at the 49-year-old actor hanging from buildings and pulling moves straight from the book of Spider-Man.

Cruise scales the Burj Khalifa in Dubai (at over 2,700 feet, it's the tallest structure in the world), and this particular scene was filmed using a helicopter crew along with cameras inside the building.

So while Tom was busy putting his life on the line, what was wife Katie Holmes up to? Click after the jump to see her appearance on the latest episode of How I Met Your Mother!