Miller tearful over Law's affair

Law and Miller met on the set of Alfie

Actress Sienna Miller has made a tearful return to the stage after her fiance, actor Jude Law, made a public apology for having an affair.

Miller, currently appearing in As You Like It in London's West End, arrived at Wyndham's Theatre and was not wearing her engagement ring.

The 23-year-old cried as she exited the stage after a standing ovation.

Law, 32, expressed his "sincere regret" for having a relationship with his children's nanny Daisy Wright.

Law issued a statement after reports of his affair with Ms Wright, 26, who cared for one of his three children.

'Unreasonable behaviour'

"I just want to say I am deeply ashamed and upset that I've hurt Sienna and the people most close to us," said the actor.

"There is no defence for my actions," added Law, who became engaged to Miller in 2004.

Friends said Law and Miller were "working through" their problems following Law's admission.

Law, who starred in Alfie and Sky Captain and the World of Tomorrow, was filming in New Orleans when the affair with Ms Wright began, it has been reported.

Ms Wright was employed to look after one of Law's children by his ex-wife Sadie Frost as he filmed his new picture, All The King's Men, earlier this year.

Frost, 38, and Law, 32, married in 1997 and have three children together. Frost was granted a divorce from Law in October 2003 citing "unreasonable behaviour" on his part.

Law first met Miller on the set of the remake of Alfie and they became engaged at Christmas.