Unless you have a very fast internet connection I would recommend that you let it run without sound and play it again after it has finished running through once (downloaded)
Live music and samba. The tall guy dancing with the very small girl is Bueno Sensei. The woman doing the fantastic dancing is Nanda, the producer of the doco and the guy who comes in at the end with...err...his very own style of dancing is Mark. See if you can spot Paul in the bakground in full fatigue mode.