Lupita Nyong’o will play two roles in Christopher Nolan ‘s upcoming epic adventure The Odyssey . Confirming online speculation, Nyong’o plays Helen of Troy, the most beautiful woman in the world who is married to Menelaus (Jon Bernthal) and gets blamed for starting a war after she’s spirited away by a prince. The Oscar winner also plays Helen’s sister, Clytemnestra, who is married to Menelaus’ brother Agamemnon (Benny Safdie). The casting was confirmed in a new Time profile of Nolan , which also revealed why the Oppenheimer director declined to cast actors to play the gods of Mount Olympus in his adaptation of the mythic tale. Nolan says he considered the idea, then decided giving the gods a presence through nature and the characters’ beliefs was the wiser move. “I became more interested in the idea that, to people in that period, evidence of gods was everywhere,” Nolan said.…