Keira Knightley is not worried about turning 30.

Keira told Glamour magazine: "I'm not actually worried about turning 30. Because, honestly, my early twenties were not much fun. Then after 25, things just got better and better.

"Maybe you stop caring as much about where you should be going and what other people think - which is all the s**t that makes you very unhappy early on."

Keira also admitted she is very happily married to Klaxons rocker James Wrighton, 31, saying she made the right decision to tie the knot in the south of France in May 2013.

She explained: "It was a bloody good day and a lot of fun. And yes, being married feels pretty good.

"You only get to choose one member of your family and I made a good choice. So well done, me!"

However, Keira - who appeared in 'Begin Again', alongside Mark Ruffalo, Adam Levine and James Corden, earlier this year - says married life has not led to her maturing.

She said: "I reached my peak of grown-up behaviour at 20 and 21, and it's been downhill since then.

"I was terribly sensible as a teenager but I've got far less so as I've grown up, which has been a huge relief for everyone - including my parents."