During The Dark Knight Gordon and his family are mentioned quite a bit, they mention the kids and in one scene they have both kids in the scene.. mostly.
Now maybe I missed it but we see plenty of the boy but not even the face of little Barbara... it makes me wonder for Nolans third movie is.. did he do that on purpose so it wouldn't make things awkward if he decides to put batgirl in O_o
Also.. During Aaron Eckharts yelling I noticed his Batman voice would be so much better than Bales.. Of course I'm no fan of Bales in the least.. doesn't change the fact that his voice is unbearable to hear.