Today it was announced that Perfume will participate alongside 11 other popular artists for the theme song of feature-length film 「今日、恋をはじめます」 (Kyo, Koi wo Hajimemasu/Today, I’ll Start Our Love), or KyoKoi. Their double-A side 2010 coupling song Natural ni Koishite was chosen for this film.
The KyoKoi film is based on the popular shojo manga of the same title by Kanan Minami. Other adaptations of the series includes a direct-to-DVD 2-episode OVA; a light novel prelude, written by Yunoka Takase; and an original live-action drama featuring AKB’s subgroup French Kiss.
The film will be in theatres December 8th, 2012.
Movie site: http://kyokoi-movie.jp/