2. Mila Kunis - Forgetting Sarah Marshall
Before she added a massive amount of raunch to the head-bending chills of The Black Swan, film fans had already briefly caught a glimpse of Kunis topless thanks to a blink and you'd miss it shot in break-up comedy Forgetting Sarah Marshall. A snapshot of her character, drunk and flashing appears on the wall of the men's toilets of a bar - prompting Jason Segel to rescue it romantically - but not before we get to see the photo on the wall. The spoilsports among you will no doubt point out the picture was faked - but that doesn't make it any less worthy of note, thanks to the photo's initial impact.