Keira Knightley has come under the scrutiny of the airbrushing police this week. It looks like her cleavage has been digitally enhanced in the latest Chanel ads, reports the Daily Mail, which encouraged her to "say it out loud - I'm flat and I'm proud!" today.Here's a new arrival for all us Keiras out there: this Simone Perele push-up bra should help you make the most of what you've got thanks to its significant amount of air padding. Fancy a more impressive cleavage? It's yours for £54.