Whats this movie called?

Hi,,

my dad was watchin this movie the other day, the part i saw was a bold
haired pony tail girl was takin dance lessons i think, later on she
goes in this bulding, asking for freedom, the guy gives her a sword
and a gun, then these big monsters she has to fight, then the quest
goes on... the movie also has a big dragon, the blond girl slits the
baby dragons throat then the big dragon unleashes fire....
Yes!!! Thank you!!!! It is!!! 20pts for u mate, thanks alot! now i can
watch it!! :D:D:D: