I'm sure it was all shot with a D7000 as said above, thing is, it's a £800 D7000 and then 10x times that on glass and 10x that on support gear (steadycam, z-finder, audio gear, all sorts).
You can produce those results but you need to plan your shots according to the equipment you have, I've seen people make DIY dollies for video work for no money at all by just making a frame with wheels to put their tripod on it. That works.
In this case, it's not the camera but the skill level which is producing the results though, check out Apple's trailers for the iMovie for iphone stuff, all shot on editted on an iphone so they say. It's impressive but it's possible because it's pro's who do it day to day and they'll have planned everything like they were using normal gear...