Well, Ginny seemed obviously miffed about Harry and Cho in this movie, so I guess they'll bring that in somehow in the next movie by Ginny going out with someone to try to make Harry jealous.
I noticed that. It was very obvious. Did you also notice that Neville and Luna ran around the Department of Mysteries holding hands?
I thought Evanna Lynch was great as Luna. She really captured the "space cadet" image I envisioned from the book. She's from Ireland but her accent seemed almost Canadian. Very non-Irish and non-British.