Excellent book
I bought Patricia Highsmith's novel just five days ago, and I finished it today.
From the beginning, even before anything has really happened, she establishes a suspenseful, ominous mood that never lets up, that just grabs you and pulls you along. I had never read anything of Highsmith's before this, but after this I'm inclined to check out more of her stuff -- I'm thinking of starting with the "Ripley" books, and I'd love to get my hands on a copy of Strangers On A Train (the Hitchcock film version of which I liked a lot).
I hope this film of Cry Of The Owl doesn't stray too much -- especially since, as they're portrayed in the book, the characters of Robert and Jenny could be real tours-de-force for Paddy and Julia. :)
"I know I'm not normal -- but I'm trying to change!" ~ Muriel's Wedding