Rhys Ifans - a thorn in Sienna's career

London (ANI): Rhys Ifans is desperate to beat up the man he holds responsible for his break-up with Sienna Miller. The actress parted ways with Ifans because he was jealous of her spending time with Mathhew Rhys, her former boyfriend. They shot a movie together in Los Angeles. Ifans has started drinking a lot after the break-up and has threatened to beat up Rhys if he finds out Miller cheated on him.

The actor has also warned he will humiliate the actress by turning up for a public showdown at her film's upcoming world premiere. "He's has taken the break-up really badly," the Sun quoted a source, as saying. "He's spent the week in the pub texting Sienna - begging her to change her mind. His hurt has turned to anger and he has said he will sort Matthew out when he sees him. He's raging.

"Sienna has lost her rag too. She's refusing to return his calls and Rhys has promised to confront her when Matthew is with her. "His last message said he'd ruin her big night at the premiere. She thinks he's serious," the source added.