Half a great origin story, bringing the Fox family closer into the Bat family with Nightwing, and half a forced origin story of a decent character whose main stake is that they dressed like a bat, being Batwoman. An actual quote from a character who specifically dressed as a bat to Nightwing is "Just because I wear this, doesn't make me a part of your little cult." That line is beyond redundancy to the point of hilarity. You have the prowess and capabilities to become a costume vigilante in a world of superheroes and villains, choose to dress in the manner of (one of) the most famous vigilantes, then lay claim to your own originality? Complete nonsense!
The movie is fun and all, but that damn line!