I've had the exact same frustration. Good News! It appears somebody "got a clue" and has started making them again. Amazon has changed its posting from "out-of-print" to "temporarily out of stock" and "on the way."
Not seeing that out of stock message anymore, wonder if they changed their minds. Yeah, this is one of his best movies. Not only that, I love the casting of Deborah WInger, and the boy that plays her son.