Oh, that's real all right!
I've seen the original video clip on a Discovery Wings program (may well have been the A380 series...). There was a really heavy cross-wind with strong localised updrafting that day, hence the PIC having to side-slip the end of the approach.
Most undercarriage designers and engineers have that clip on their computers too, to remind them why they must over-engineer landing gear; the entire 747 comes down on just one of the four main struts, and remains there for a good 5 seconds before the PIC gets the other three on the deck.
