Helen Mirren, poses with her Oscar trophy after winning the Best Actress in a Leading Role for her work in "The Queen," at the 79th Annual Academy Awards in Hollywood, California, February 25, 2007. The 79th Academy Awards was held here Sunday. (Xinhua/Qi Heng)Photo Gallery>>>

    LOS ANGELES, Feb. 25 (Xinhua) -- Helen Mirren on Sunday won best actress Oscar award for her performance in "The Queen" depicting British queen Elizabeth II.