You can read more about it at the link above, should you wish.
In any event, our 50th class reunion was a couple weeks ago, not too far from the fields where the filming took place. Gary was there along with several of the stars -- Red Scannell, Tony Ingraffea, and TOF himself -- and TOF was inspired to upload the file onto YouTube for the delight and edification of the TOFheads out there.
Be aware that this is a DVD file made from a VHS tape shot off a screen showing of the 16mm B&W original. Consequently, there is at the beginning some out-of-focus, sprocket jumping, and other difficulties that we must all endure unless and until the original film is rediscovered and a better version is made directly therefrom.
And now, without further ado: