At the 2013 Cannes International Film Festival, cinematographer Lorenzo Hagerman speaks about his experiences with the ARRI ALEXA on HELI, which was awarded the Best Director prize. Despite a low budget, Hagerman opted to record in the ARRIRAW format, maximizing the flexibility of his images in post and creating a final look of exceptionally high quality.
http://www.youtube.com/watch?feature=player_embedded&v=5UKyKhn5Zpg