The english version was presented as a 5 part series. The american version was split into more episodes (for example part 1 of the english version was broken into two parts - before and after Yakumo returns home to his school), and there are some extra things here and there like short recap scenes and such. There are probably more extra scenes, but to be honest though, I gave up after the first episode. Honestly, after seeing the english version, it was
that bad. I simply could not take watching it any longer.
One of these days, I might force myself to sit through it and see any more extra scenes that could be there ... but the voice cast is so terrible. Maybe I'll put on subtitles in order to sit through it...