Kirsten DunstKirsten DunstCelebs may look like they're living the high life...

But Hollywood can actually be a very, very tough place.

So much so, Kirsten Dunst has revealed she almost quit acting after filming Spider-Man 3.

The 25 year old told Live magazine: "I was in a lot of pain while I was making Spider-Man 3. Afterwards, I was done with acting.

"When I finished the film, I needed a very long break from movies. I didn't care about acting and I haven't worked since, because that's the thing that's been causing the most pain."

Kirsten also revealed it was the poor response to Marie Antoinette at the Cannes Film Festival that initially triggered her decision.

She said: "Cannes was difficult... a few people booed at one of the screenings.

"It was like they s**t on the film. I was so angry about the way people were talking about it and fed up with this business.

"The movie was personal to me. It felt like everyone was stamping on me."