9. Jessica Alba Nude - Machete
To be fair, the fact that Jessica Alba is notoriously averse to stripping off for films - cuing a lot of nerd outrage when she wouldn't re-robe for the bar scenes in Sin City - should have been a good indication that something wasn't quite right here, yet the shot on the right, of Alba stood naked, strategically framed to cover her modesty, seemed so realistic that there didn't seem to be any doubt. However, it was in fact an extremely photo-realistic airbrushing, with Alba's underwear having been painted out. Given that the final result presumably gives a pretty photo-realistic depiction of what Alba looks like naked, one has to ask, why didn't she just strip off anyway? If she's consenting for her image to be used that way, does it really matter if there's a barrier of CGI in the way?