

Artist David Hockney discusses his theory that artists were secretly using optical devices such as mirrors and lenses in creating their work as early as the 15th century.
David Hockney: Secret Knowledge was directed by Randall Wright.
David Hockney: Secret Knowledge holds an average rating of 7.2/10 on TMDB, and it lands best with fans of documentary. Join the discussion below to add your take.
David Hockney: Secret Knowledge runs for 1h 12min, and was released in 2001.
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