Ayu was in several films:
Sumomo mo momo (1995)
http://www.cdjapan.co.jp/detailview.html?KEY=BWD-1004
Ladys Ladys!! Soucho Saigo no hi (1995)
http://www.cdjapan.co.jp/detailview.html?KEY=BWD-1005
Nagisa no Sindbad (1995)
http://www.cdjapan.co.jp/(mint)/deta...?KEY=TDV-2868D
Besides these three movies she had some television roles and I believe she did a voice in a Street Fighter anime movie.
I think the movie Akurei is talking about is "Ladys Ladys!! Soucho Saigo no hi". In the film Ayu plays a girl who becomes involved with a gang.