In 1979 Thys Ockersen produced with Wim Lindner a screenwriters seminar in the Dutch Film Museum in Amsterdam. To improve the quality of the dutch screenwriters for movies and TV over a hundred people were invited to attend for four weeks to be lectured by three teachers from the American Film Institute: William Fadiman, John Bloch and Vincent DiPersio. Bloch and Fadiman had already done their screenwriters seminar in Belgium. This was a huge success. So was the dutch seminar. Four guest lecturers were invited: Ernest Lehman, Claude Goeretta, Ken Loach and Paul Schrader. Thys covered this seminar with a documentary for dutch TV.