Its called *THE QUEEN A LIFE IN FILM* it's a collection of DVD's in the Daily and Sunday Telegraph which started last Saturday and has continued all this week so you have missed some, however as with all these promotions they give you a chance to get the full set by post but you will need to get the paper to find out... hope that this helps !!!
There you are a link that has all the info :)
You have to collect them from WHS on a daily basis or claim via tokens or buy without tokens. 3 different options