Akumu-chan The Movie was released in Japanese theatres on May 3rd. To celebrate, the main members of the cast were on hand to greet fans at two special showings of the movie at the Toho Cinema in Roppongi Hills.
Tokyo Hi-Imagine had an Akumu-chan special. There are interviews with the cast and also some behind the scenes footage (including GACKT forgetting his lines again)
I saw the movie today. My totally non-spoiler review is that it is very enjoyable, although the story does take a little long to actually get going and really get interesting.
The screen time of Shiki and Yumeoji is kinda limited, but that's true of many of the series regulars (Kotoha-sensei especially has a real reduction in screen time). However, a question or two do get answered XD
If I get time, I might do a more spoilery review of it over the next couple of days.