TBWA\Paris, Amnesty International France’s advertising agency for 10 years, has a new ad for the organization, which is celebrating its 35th anniversary.

The 1:55 film, entitled “Pens,” uses a clever visual device to tell the story of an unnamed protestor. The protestor is arrested, detained and abused, but released following thousands of petitions for his release. Set to a soundtrack performed by Paolo Nutini, with a short, stirring excerpt from Charlie Chaplin’s The Dictator, the spot champions Amnesty’s process of mobilization via the signatures of its supporters. “Pens” is a clear expression of Amnesty Frances’s ““your signature is more powerful than you think” slogan and a powerful encapsulation of what the organization stands for. Stick around for credits after the jump. Read more