David Hockney: Secret Knowledge
Movie| Title | David Hockney: Secret Knowledge |
| User score | 7.3 |
| Release date | Oct 13, 2001 |
| Genre | Documentary |
| Director | Randall Wright |
| Production country | US |
| Run time | 72 min. |
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.
