Sienna Miller is trying to mend her broken heart by throwing herself into stage work - and she is determined not to let fiance Jude Law's infidelity overshadow her talents.

The Layer Cake actress was distraught after the adulterous actor last month (JUL05) admitted to a month-long affair with his children's nanny DAISY WRIGHT.

But the 23-year-old, who is currently starring as CELIA in William Shakespeare's AS YOU LIKE IT in London's West End, insists acting is her true love and will help her through any difficulty.

She says, "There's this lovely expression - Dr Theatre.

"It's great, it's what I love doing, I wouldn't be want to do anything else."