KIRSTEN Dunst (above)seems to have calmed down since her stint in rehab last year. The actress and two friends spent the other night at the Jane Hotel, dancing and smoking — but not drinking. “She had two bodyguards hovering over her at all times who were monitoring her,” says our spy. “Still, she looked like she was having fun.” Dunst, 27, reportedly hooked up recently with a friend of her 22-year-old brother while partying with him in Oxford, Miss.