Gemma Arterton is an English actress. She is known for her roles in the fantasy films like : St Trinian’s , Clash of the Titans , Prince of Persia: The Sands of Time , Byzantium and as the character Gretel in Witch Hunters. Gemma showed off her cleavage on the red carpet and the world is a much better place for it. She was out at an event and wore a very nice dress that ended in a corset and manage to hoist her tits up like nobody’s business.