 In her book "The Sense and Sensibility Screenplay & Diaries:  Bringing Jane Austens Novel to Film", Emma Thompson (I) (qv)  writes that after a particularly difficult day filming a sequence  that involved a flock of sheep, Ang Lee (qv) swore that he would  never again use the animals on a movie set. This movie, however, is  about two young men who meet while sheep herding.