
Sadie Frost thinks Sienna Miller has been treated unfairly by the press over her relationship with Balthazar Getty.
The designer's ex-husband Jude Law was engaged to Sienna for a short time following their split.
But she insists there's nothing wrong with the actress dating married Brothers And Sisters star Balthazar, 33.
'She's a nice person,’ says Sadie. ‘She's young. She's a free spirit. She has been really unfairly treated.
'Whatever she does in her personal life, that is between her and the other person.
'It isn't for the media to persuade the public that she is a bad person.'
Sadie also says reports Kate Moss, 34, turned on Sienna for dumping Rhys Ifans, 40, are untrue.
'She is somebody who does not have strong opinions about other people,’ she tells The Evening Standard. ‘She is a very accepting person.’
Sienna, 26, insists she started her relationship with Balthazar after he split with wife Rosetta, 38.
She dated Jude Law in 2003, before his divorce from Sadie, 43, was finalised.

SEE GALLERY Sienna Miller and Balthazar Getty's Malibu lunch>>