Your Signature is More Powerful Than You Think
Here is a beautifully simple and compellingly powerful concept from TBWA for Amnesty International. To convince people their signature is a powerful tool against human rights violations, the guard in this ad gets a bit more than he expects as he's torturing his prisoner.
The ad, directed by Cyrille de Vignemont and produced by Wanda, carries the tagline, Your Signature is More Powerful Than You Think. Indeed. Well done.