From the age of 13 when she played Caliban in a school production of "The Tempest,” Helen Mirren knew she wanted to be an actress. Her Russian-born father and English mother may have encouraged her to be a teacher like her siblings, but Mirren's mind was set. She auditioned for and won a spot with the National Youth Theatre and at the tender age of 18 was cast as the Egyptian queen in Shakespeare's "Antony and Cleopatra" at London's Old Vic Theatre, a part that has become something of a talisman for her. (She went on to tackle the role again in 1983 opposite Michael Gambon and again in 1998