While the book is enjoyable, deep (pardon the pun), and leaves the reader with a lot of thinking to do, the film captures all those abstract and intangbile emotions the book cannot aptly convey.
At the premiere, the director spoke and said his movie would not have been possible without the book. He felt incredibly indebted to the author.
I haven't seen or heard anything about the movie since my time in Montreal (that must have been in 1994), but, if at all possible, please see the film!