Angelina Jolie got her sons to block the door of her rehearsal room when she was training to sing like Maria Callas. The ‘Maleficent’ actress stars as the iconic opera singer in the upcoming movie ‘Maria’ and spent seven months working on her vocals for the performance. She said at the Venice Film Festival where she is promoting the movie about her nerves over the role: “Everybody here knows I was terribly nervous about the singing. I spent almost seven months training because when you work with (director) Pablo (Larrain) you can’t do anything by half. “He demands in a most wonderful way that …
