Firth Joins Dorian Gray August 1, 2008 Colin Firth joins Ben Bares in Oscar Wilde adaptation. Colin Firth has signed on to star opposite Ben Barnes in ‘Dorian Gray,’ the retelling of the Oscar Wilde classic story. Directed by Oliver Parker, ‘The Picture of Dorian Gray,’ centres on Gray (Barnes), a young man who becomes the subject of a painting. As the man descends into a hedonistic lifestyle, the portrait begins to age and morph, but he doesn’t. Firth will play Lord Henry Wotton, the aristocrat who corrupts Gray with his worldview. (He is sometimes called Harry in the novel.) Firth stars in the hit musical ‘Mamma Mia!’ and next appears in Michael Winterbottom’s ‘Genova’. Shooting on ‘Dorian Gray’ begins later this week.