I only watched the trailer for the first time today. The ridiculous full title, and the trailer including every cameo was incredibly off-putting. It looked alright, and then it dawned on me: Man this would have been awesome with an actual ballerina fighting, considering the ridiculous feats they could perform. I think back to Summer Glau in Serenity, who could seemingly kick you in the head from around a corner. In comparison, this film looks pretty standard. Maybe these reshoots have done something more interesting with the action.
Also... revenge for a dead father? Should have been a cat, or a parrot.