Kirsten Dunst joins Melancholia April 16, 2010 Dunst joins ars Von Trier’s sci fi picture Melancholia. Kirsten Dunst has joined the cast of Lars Von Trier’s next film Melancholia. According to reports, the Spider-Man actress is taking the part that Penelope Cruz was eyeing before she joined Pirates of the Caribbean: On Stranger Tides. Dunst will join Charlotte Gainsbourg, Kiefer Sutherland, Charlotte Rampling, Alexander Skarsgaard, Stellan Skarsgaard and Udo Kier in director Von Trier’s sci-fi disaster movie. The picture will begin production this July.