-When I first saw Urahara in SS I was a little irked that, even though it's a non-canon movie, they glanced over the whole "Urahara is banned from SS" thing. Then later they at least acknowledged it with a "I always knew how to get back" line which worked for me.
-While the main female villian's voice and personality were annoying, I was swayed to her cause by her lack of pants.
-Seeing Urahara in action was pretty cool, though it felt a little odd with the amount of dialog he had. I'm just used to his quick and cryptic explanations I guess.
-Rukia, as usual, is useless and hopeless. However, the merged dark Rukia did look pretty cool
-Unsure why, while looking for Rukia, Byakuya would tell Ichigo where Hisana was born, as though it were obvious that's where Rukia would be for some reason.
-Interesting new way to use Senbonzakura with the whole creating a tunnel thing.
-Zaraki.
-Soifon is as useless as ever, twice as useless while oogling over her Yourichi-sama
-Yami-Jii again proves to be the most incompetent leader ever. I can't think of a single situation in Bleach where he didn't jump to the "capture the traitor" conclusion without even considering why things were happening as they were
-This can be explained away as non-canon stuff, but it's strange they used Rukia giving Ichigo his original Shinigami powers as means for him to still remember her. Those "original" Shinigami powers were severed by Byakuya a long time ago and Urahara's training supposedly brought out Ichigo's own Shinigami powers. So in theory that "link" between Ichigo and Rukia should not have existed anymore. Again, it's obviously just non-canon stuff to make the movie.
-I was a little surprised when Ichigo was trying to explain things to various people that he never brought up Aizen to try and make them remember him. Though I guess that would have brought on a whole new level of inconsistencies.
That's all I can think of off the top of my head right now. I know most of the stuff was already said by others, but felt like randomly throwing my own two cents in on it all to waste an hour of Friday morning work.