Sigurjón Sighvatsson (born 15 June 1952), also known as Joni Sighvatsson, is a Hollywood film producer and businessman. Sigurjón Sighvatsson was born in Reykjavik, Iceland, the son of Sigurborg Sigurjonsdottir and Sighvatur Karlsson. He immigrated to the United States in 1978. He graduated with BA in English and literature from the University of Iceland and MFA from the University of Southern California in Los Angeles. He began his professional film career as a co-founder of Propaganda Films, which revolutionized the commercial and music video industries before moving into feature film production. While at Propaganda, he worked with future directing stars such as David Fincher, Michael Bay and Spike Jonze and produced such films as David Lynch's Wild at Heart, Madonna: Truth or Dare, Kalifornia, Basquiat, Candyman, Red Rock West and A Thousand Acres. Additionally, he produced the modern television classic David Lynch's Twin Peaks and was one of the original producers on the original Beverly Hills 90210 series.