movie where young girl is walking on top of roller coaster tracks after killing bad men

Follow the journey of an extraordinary young girl as she evades the relentless pursuit of an off-book CIA agent and tries to unearth the truth behind who she is.

Raised by her father, an ex-CIA agent, in the wilds of Finland, Hanna's upbringing has been geared to making her the perfect assassin. Sent into the world by her father on a mission, Hanna journeys across Europe, eluding agents dispatched after her by a ruthless intelligence operative. As she nears her ultimate target, Hanna faces startling revelations about her existence.