Which actress won an Oscar for her role as Queen Elizabeth II in the film "The Queen"?

Explanation

Dame Helen Mirren won at least 29 major awards for her portrayal of Queen Elizabeth II, including an Oscar and a Golden Globe. She is one of only three actresses (Liza Minnelli and Helen Hunt) to win a Golden Globe, an Oscar and an Emmy for performances given in the same year. Mirren praised the Queen in her Academy Award acceptance speech and was invited to dinner at Buckingham Palace, but declined due to filming commitments in the US.