This Oil of Olay print ad image featuring Twiggy is at the center of a heated debate over a proposed Photoshop ban in Britain. Liberal Democrats there say that the practice of image retouching is a harmful one, and they propose footnotes be added to all doctored photos that disclose that they've been edited.

Moreover, Liberal Democrats also advocate a Photoshop ban in Britain for all advertising targeted at youth under the age of 16. The gallery above starts off with Twiggy's Oil of Olay ad--which only warranted attention because shortly after it was published, wrinkle-filled photos of the iconic model out shopping surfaced--and finishes up with classic blunders from Photoshop Disasters.