Kirsten Dunst is the latest partied-out star to check into rehab.

The actress is receiving treatment at Cirque Lodge in Utah - where Lindsay Lohan had a lengthy stay last year - following a week of wild partying at last month's Sundance Film Festival.

"She desperately needed help," a source tells Star magazine. "She seemed to be intoxicated when she checked in because she was acting really erratic. She was extremely emotional, constantly breaking down in tears.

"She not in a good place right now, but thankfully, she's getting the help she needs."

Entertainmentwise reported last week how the Spiderman actress’s recent ‘erratic’ behaviour had sparked fears among friends that she was heading for a breakdown.