Desc: Cow: Directed by Peter Watkins-Hughes. With Jenny Davies, Amy Ingram, Laura Quantick, Roger Evans. Cassie "Cow" Cowan causes a a multiple-fatal accident. How it happened, and the aftermath. The trailer for this fictional film was a viral sensation on YouTube in 2009, and has become a Public Service Announcement on its own. The full 30 minute video is intended for educational viewing in high schools.