Sienna Miller: I'm Entering a More Serious Decade

Sienna Miller flashes a smile after performing in her new play, Flare Path, at Theatre Royal Haymarket on Saturday (March 12) in London, England.

The 29-year-old actress recently said she can relate to her character, who turns her back on fame for a more grownup life.

“I feel like I’m in a very different place to where I was,” she told U.K.’s Guardian.

“I feel like I experienced my 20s in all their glory and all their disastrousness,” she added, “and now I feel much more calm. It feels like a new, more serious decade.”