Existenz is a 1999 science fiction thriller film written, produced and directed by Canadian director David Cronenberg. The plot of the film follows a game designer named Allegra Geller, played by Jennifer Jason Leigh, who finds herself targeted by assassins while playing a virtual reality game of her own creation. An international co-production between Canada, the United Kingdom, and France, it also stars Jude Law, Ian Holm, Don McKellar, Callum Keith Rennie, Sarah Polley, Christopher Eccleston, Willem Dafoe, and Robert A. Silverman.