Here is a bit of info. i found.. enjoy

Jump Festa is held in Japan between 18 and 19 of December. Square-Enix has announced this year's Jump Festa lineup which will include Advent Children, Dirge of Cerberus, Before Crisis and other titles.
www.square-enix.co.jp/jf05/

Regarding FFVII:AC-
Square-Enix announced that Japanese release of Final Fantasy XII would be some time after April 1, 2005 (at the earliest). No word yet on how this would affect the English release of Final Fantasy XII, currently slated for fall 2005."

Final Fantasy VII: Advent Children
"Taking place two years after the events of the multi-million dollar hit videogame "Final Fantasy VII". Cloud Strife, ex-SOLDIER, and mercenary, struggles with his past, and decides to live a solitary life, in a peaceful town with orphans. Then one ordinary day, Cloud recieves a phone call for a job asking protection from a mysterious man named Kadaj. Kadaj, Loz, and Yazoo, all brothers, begin searching for their "Mother", and soon decide to invade the orphanage where Cloud resides. Tifa Lockheart, appears in the film; still working at 7th heaven she keeps an eye on Marlene (Barret's daughter) and other orphans as well. Vincent Valentine, one of the hidden characters in Final Fantasy VII, apppears to be living in solitude as well, with some information regarding the scheme formed by Kadaj, Loz, and Yazoo. Barret Wallace, another character among the many in Final Fantasy VII. Barret seems to be wandering the world in search of a better energy source than Mako (energy that was used by the Shinra Corporation, infused in humans to make them better). "

Directed by
Tetsuya Nomura
Takeshi Nozue (co-director)

Writing credits
Kazushige Nojima event scenario writer

Cast
Takahiro Sakurai .... Cloud Strife (voice)
rest of cast listed alphabetically
Keiji Fujiwara .... Reno (voice)
Kyosuke Ikeda .... Denzel (voice)
Ayumi Ito .... Tifa Lockheart (voice)
Yumi Kakazu .... Yuffie Kisaragi (voice)
Yûji Kishi .... Yazoo (voice)
Masahiro Kobayashi .... Barret Wallace (voice)
Taiten Kusunoki .... Rude (voice)
Tsuduruhara Miyuu .... Marlene (voice)
Toshiyuki Morikawa .... Sephiroth (voice)
Shotaro Morikubo .... Kadaj (voice)
Kenji Nomura .... Loz (voice)
Jesse Norton .... Tifa Lockheart (voice: English version)
Toru Ôkawa .... Rufus Shinra (voice)
Maaya Sakamoto .... Aeris Gainsborough (voice)
Shogo Suzuki .... Vincent Valentine (voice)
Kenichi Suzumura .... Zack (voice)