Japan Media Arts Festival – call for entries dates:

Thursday, 15 July 2010 − Friday, 24 September 2010 (Arrival no later than the deadline date)

Art Division
Art works using new media and digital technologies
Interactive Art / Installation / Movie / Digital Photograph / Still Image / Website, etc.
Entertainment Division
Entertainment works using new media and digital technologies
Game / Play Equipment / Movie (VFX, CM, MV, etc.) / Character / Website, etc.
Animation Division
Feature Length Animation / TV Animation / Original Video Animation (OVA) / Short Animation, etc.
Manga Division
Story Manga / Comic Strip Manga / Non-commercial Manga / Digital Manga, etc.

More info about prizes and entry rules here: http://plaza.bunka.go.jp/english/