Focus Features, via Yahoo! Movies, have released the official first trailer for their upcoming action thriller Hanna.

Directed by Joe Wright (Atonement), Hanna stars Eric Bana (Funny People), Saoirse Ronan (The Way Back), Cate Blanchett (Notes on a Scandal), Olivia Williams (The Ghost), Niels Arestrup (A Prophet) and Tom Hollander (In the Loop).

Hanna will be released on April 8, 2011.

Synopsis: Hanna (Ronan) is a teenage girl. Uniquely, she has the strength, the stamina, and the smarts of a solider; these come from being raised by her father (Bana), an ex-CIA man, in the wilds of Sweden. 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 (Blanchett). As she nears her ultimate target, Hanna faces startling revelations about her existence and unexpected questions about her humanity.

Watch the trailer below: