Don't think I'm in any club or anything but will still respond.
Saw this movie like 3 years ago, it was amazing. Funny thing is, I heard of it on this site. I had such a blast of nostglia while watching it too, reminds me so much of the Digimon movie, Bokuwa no War Game. Extremely similar plot and ending, though to be expected, same creators.
Also, did you know Clazziquai did the PV song for the anime?
Was so happy when I saw the PV, even after I had saw the anime. (Was playing DJ MAX Clazziquai at the time, lol.)