Dunst denies substance abuse caused Gyllenhaal split

Kirsten Dunst's representatives have blasted accusations the actress' split with actor Jake Gyllenhaal was caused by her alleged substance abuse.

The 25-year-old was reportedly admitted to Cirque Lodge after a week of partying at last month's Sundance Film Festival - but family sources close to the Spider Man star insist it was her wild ways that caused the couple's three-year relationship to end in 2005.