There is something about Irish-American actress Saoirse Ronan that causes casting agents to come flocking when they need to fill the part of a young woman with an old soul.
Ronan, 19, is aware of how she tends to play teens who are wise beyond their years - or "grown-up girls", as she puts it.
In the drama The Way Back (2010), she played an escapee from a 1940s Russian collective who lives on her wits. The action-thriller Hanna (2011) saw her as an assassin with superhuman strength and smarts. In The Host (2013), she becomes almost otherworldly after an alien spirit is implanted in her soul.
It is time, she tells Life! on the telephone from London, to make a change.
In the crime thriller Violet & Daisy, now showing in cinemas, her character Daisy is an airhead with a dark side. She is obsessed with clothes and shopping and idolises pop stars. She pays for it all with money she earns as a gun for hire, a job she shares with her equally shallow best friend, Violet (Alexis Bledel).
"I hadn't really played anyone so spacey and bubbly before. Since I've started, I've played a lot of girls who are grown up and act in that way. I liked the idea of playing someone who is quite naive and innocent," she says.
There is another element to the film that she found both appealing and daunting - the comedy. Though she has done comic characters early in her career, Ronan has been associated with serious dramatic parts since her breakout role as strong-willed Briony Tallis in Atonement (2007), for which she was nominated for a Best Supporting Actress Oscar.
"I was a bit nervous because the dialogue was so quick and so clever. There were quite a few monologues. We had eight-page scenes that were so much fun to delve into," she says.