Kirsten Dunst has revealed that her stint in rehab earlier this year was to treat depression and not substance abuse as previously reported.

The Spiderman actress explained in an interview that she had spent six months trying to battle the blues, but eventually realised she needed help which is why she checked in to a Utah facility.

She tells E! News: "I didn't go to Cirque Lodge for alcohol abuse or drug abuse. I went there for depression. It was a good six months before I decided to go away.

"I was struggling, and I had the opportunity to go somewhere and take care of myself. I was fortunate to have the resources to do it.

"My friends and family thought it was a good idea, too. But I didn't know where to go. My doctor recommended Cirque Lodge."

Dunst admits speculation about her health and personal problems haven't helped her in her battle: "Depression is pretty serious and should not be gossiped about.

"There's been a lot of misrepresentation about what is going on in my life... (That's) very painful for my friends and family.

"Everyone feels like they have to defend me. They hear the rumours, and it puts them in a defensive position. Now that I'm feeling stronger, I'm prepared to say something."