Bourne Identity but with a girl
An explanation for why she is able to defeat men in fistfights, comes way too late in the movie; it should have been explained in the beginning as the reveal doesn't provide a shock or twist. It should have been more like the Bourne Supremacy where we know what is going on. There is no reason for it to be left until the end. It comes across as an afterthought. The movie has excellent music, especially during the fight scenes. She also apparently is unfamiliar with modern technology but seems to be able to use the internet without a problem. The implied lesbianism was also annoying.
Near the end, there is a scene which ends up making Hanna an unsympathetic character. Unlike Jason Bourne who takes care of the girl he is with Hanna doesn't really care about anyone. After this scene I wanted her pursuers to kill her. Her pursuer, a top-level CIA officer, also makes two incredibly stupid decisions that are just too unbelievable & makes the ending itself terrible & abrupt.
It was basically a live-action anime movie with a young girl assassin like Gun-Slinger Girls but without a skirt.