Sienna Blows Top, Sues Over Beach Pics

Snapping nudie pics of Sienna Miller cavorting with a married man will get you sued ... in the UK anyway!

The divine Miss Miller has filed suit against several London tabloids for publishing pics of her sexy Italian getaway with Balthazar Getty. The two were seen kissing and partying it up -- topless style -- on a yacht.

Her lawyers have served up News of the World, the Sun and the Big Pictures photo agency a breach of privacy suit.