12/03/2015 07:20 GMT | Updated 20/05/2015 06:12 BST

Has Cate Blanchett Adopted A Baby Girl?

Australian actress Cate Blanchett (R) and her husband, playwright Andrew Upton (L), launch Sydney Theatre Company's (STC) 2012 Main Stage season in Sydney on September 23, 2011. Blanchett and Upton are the joint artistic directors of Australia's premier theatre company. AFP PHOTO / Torsten BLACKWOOD (Photo credit should read TORSTEN BLACKWOOD/AFP/Getty Images)

Cate Blanchett is reported to have adopted a baby daughter.

According to The Australian Women's Weekly, the 45-year-old Australian actress and her husband, playwright and artistic director of the Sydney Theatre Company Andrew Upton, 49, have added to their family of three boys and adopted a little girl named Vivienne. The couple are already parents to Dashiell, 13, Roman, 10, and Ignatius, seven and have been married since 1997.

The magazine reports Cate has told close friends at her sons' primary school in Sydney, Australia, about the addition to their family, with one friend saying: "She's really excited and clearly besotted." The publication also wrote that the actress's representatives confirmed the adoption news.

Earlier this week, while promoting her new role in Cinderella, Cate joked she was an embarrassing mum to her sons.