Focus Features has released the trailer to the action film, 'Hanna,' starring Saoirse Ronan as the title character of this adventure thriller.

Directed by Joe Wright, the film also stars Cate Blanchett, Eric Bana, Jason Flemyng, Tom Hollander, and Olivia Williams.

Hanna (played by Ronan) is a teenage girl. Uniquely, she has the strength, the stamina, and the smarts of a soldier; these come from being raised by her father (played by Bana), an ex-CIA man, in the wilds of Finland. Living a life unlike any other teenager, her upbringing and training have been one and the same, all geared to making her the perfect assassin. The turning point in her adolescence is a sharp one; sent into the world by her father on a mission, Hanna journeys stealthily across Europe while eluding agents dispatched after her by a ruthless intelligence operative with secrets of her own (played by Blanchett). As she nears her ultimate target, Hanna faces startling revelations about her existence and unexpected questions about her humanity.

The film hits theaters on April 8, 2011.