Chancery Papermaking at the University of Iowa's Center for the Book. Papermakers: Tim Barrett, Katharina Siedler, Mary Louise Sullivan, Elizabeth Boyne. Direction and Narration: Tim Barrett Video Content Production: Avi Michael

Hayle Mill
A short film, made by Anglia TV, describing all the processes in making fine paper including a section devoted to making and fitting a watermark to a mould. 
Made at Hayle Mill with Simon Green in 1976

Sekishu-Banshi papermaking
UNESCO: Representative List of the Intangible Cultural Heritage of Humanity - 2009  The unique techniques of Sekishu-Banshi papermaking create the strongest paper 

How parchment is made - Domesday - BBC Two

Making Manuscripts
An illuminated manuscript is a book written and decorated completely by hand. Illuminated manuscripts were among the most precious objects produced in the Middle Ages and the early Renaissance, primarily in monasteries and courts. Made by Getty Museum.