I've checked around but it seems no one managed to catch it on video
Still, The Browncoat Cat left us a nice report of what it included:
Various assorted clips of Cardiff and Dubai doubling for London and an Alien Planet and from memory:
- Shots of Michelle Ryan doing some sort of Mission Impossible break in with wires and a harness
- UNIT troops shooting at something after Brig. Magambo declares a "Code Red"
- A steaming burnt corpse appearing in the tunnel
- The Doctor asking Christina if she was ready
- A woman saying "we're dead" over and over again
- Lots of glorious panoramic shots of the desert
- Christina being pursued by the Police.
- The Doctor and Christina aboard the bus.
Hopefully this means that the trailer will be appearing on tv soon enough where we can all bask in its gloriousness!