Kirsten Dunst has entered rehab, a source close to the actress confirms to PEOPLE.

The Spider-Man star is being treated at the exclusive Cirque Lodge Treatment Center in Utah, the same facility where Lindsay Lohan spent nearly two months and where Eva Mendes recently checked in, according to reports.

Dunst, 25, who is a regular on the party scene in Los Angeles, was recently seen partying at the Sundance Film Festival where she hung out with Josh Hartnett at Hyde Lounge. Despite reports of erratic behavior at the festival, sources say Dunst was just displaying her usual "care free party girl antics."

"She was in a big group of friends and they were dancing their asses off by their table. They looked like they were having a great time and they were getting pretty crazy," said a source at the time.

However, the following day Dunst failed show up to her own Glamour magazine party. A source at the time said the actress "wasn’t feeling well."