Miller, Frost in 'child haircut row'

Sienna Miller has reportedly annoyed Sadie Frost by taking the star's daughter Iris to a hairdresser's without permission.

The dispute was sparked at the weekend after Frost left the 9-year-old with her ex Jude Law while she attended the Isle Of Wight Festival, The Sun reports.

Sources say that Miller, who reunited with Law last year, arranged the hairdressing trip in order to bond with her future stepdaughter. The child is now thought to have a short pixie-style cut.

After learning of her daughter's new look, Frost appeared to go public with her anger on Twitter, posting: "I think ya should get ya own child and then cut their hair!"

An insider said: "Sadie had a great time at the festival but it was all forgotten when she saw Iris's hair. It's not that the style doesn't look nice - it does - but that it was done without her permission. I'm sure Sienna was just trying to be nice. But Sadie doesn't want Sienna playing mum to her kids."

Miller and Law are thought to be engaged again and are expected to marry sometime this summer.