The first stage of Lockheed Martin's Atlas 5 rocket to launch the Pluto New Horizons spacecraft is erected atop the mobile launching platform at the Vertical Integration Facility vehicle assembly building at Cape Canaveral's Complex 41. The stage is powered by the Russian-designed, dual-nozzle RD-180 main engine.
Source: (5 min 28 sec QuickTime 6 file)
Download this clip to your hardrive.
(Windows users right-click this link. Mac users control-click this link)