For Saoirse Ronan, 'Queen of Scots' Role Gave Room to Grow

Saoirse Ronan says she was more than ready to make the transition on film from young girl to commanding woman. Her new role in "Mary Queen of Scots," gave her the opportunity to do both.

Ronan, who is Irish, says she was not only excited to play Mary Stuart, a 16th century Celtic ruler, but also to take on such a meaty part. Ronan is able to show the queen transition to full womanhood as her character falls in love, becomes a mother, and rides a horse into battle.

The Oscar-nominated actress said she's been looking for an opportunity to collaborate with Margot Robbie, who plays Queen Elizabeth I in the film. The pair chose not to see each other before their pivotal scene together.