Old flames Jude Law and Sienna Miller are reportedly slating each other in private, friends of the pair have said.

Six months after their on-off relationship ended for the final time, the Sunday Mirror claims the couple's pledge to remain friends has backfired spectacularly.

Alfie star Law has apparently attacked 25-year-old Miller's new partner Jamie Burke, while she responded herself by slamming Hollywood partygirl Lindsay Lohan  recently spotted out and about with Law on New York's nightclub scene.

According to mutual friends, Law, 34, says Miller is "dull, fake and boring", with the Factory Girl Actress claiming he is "fat, egotistical and juvenile".

"After splitting up, Jude and Sienna said they would try to remain friends," a source told the Sunday Mirror.

"But this simply hasn't happened.

"They are both angry and bitter. They just keep on trading vicious insults, and keep fighting back and forth," the mutual friend added.

08/04/2007 18:11:45