Existenz (stylized as eXistenZ) is a 1999 science fiction horror film written, produced and directed by David Cronenberg. The film follows Allegra Geller (Jennifer Jason Leigh), a game designer 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.

https://en.wikipedia.org/wiki/Existenz