(Cover) - EN Showbiz - Sofia Coppola thinks it sucks that she will have to start acting like a grown-up when she turns 40.

The talented moviemaker is celebrated for her work on hit films such as Lost in Translation and Marie Antoinette, and her latest project Somewhere stars Stephen Dorff as a hard-living Hollywood actor whose life changes when his 11-year-old daughter comes to stay with him.

The director turns 40 next May, and insists she still doesnt feel like a true adult, despite her immense career success as well as being a mother to daughters Romy, four, and Cosima, who was born in May this year.

Ive enjoyed my late thirties, she told British newspaper The Daily Telegraph.

Now, I go back and forth between being fine about being 40 next year and feeling that Ill have to start acting like a grown-up. I always felt that sucks.

After contemplating her reluctance at reaching the landmark age, Sofia then laughed that she still employs language favoured by teenagers. The director thinks its good shes still young at heart though.

And hey, Im about to enter my forties and I still say, That sucks! she remarked.

Sofia also discussed her relationship with Thomas Mars, who is lead singer of French rock band Phoenix. The talented star thinks marriage will be on the cards one day, although the fact that she divorced her first husband Spike Jonze in 2003 has made her wary of rushing into it.

I think we will do it eventually. But I guess after being divorced I wasnt gung-ho about marriage, she explained. (C) Cover Media