Watch The Lost Genius of British Art: William Dobson (2011) : Full Movie Online Free Has one of Britain's greatest artists been unfairly forgotten? Waldemar Januszczak thinks so. In this documentary, Januszczak argues that the little known 17th-century portrait painter William Dobson was the first English painter of genius. Dobson's life and times are embedded in one of the most turbulent and significant epochs of British history - the English Civil War.