When they did it in the Dove film, they most likely (to do it fast and on the same layer - I'm with aprilgem on this one as I think it's psychotic to do it all on the same layer) had the Lasso Tool already set with a decently heavy feathered edge - that way it would blend with the surrounding skin.

Great video - I think every teenage girl (and numerous adults, for that matter!) should see that!

@ aprilgem - loved your image manipulation work (while I like bigger butts, I'm actually talking about the work you did on this image ;-) )! Looks flawless! Here's something you might love to use in the future - instead of clicking "Distort" try out "Warp"! This'll blow your mind as it's almost a slimmed down Liquify function - where you can bend the inside of the selected area. Many a panoramic of clouds have been lined up and matched with that function - have fun!

-Lew ;-)