Avatar pulled audiences into Pandora nearly a full decade ago, but James Cameron?s still convinced that he can drop four sequels (two of which he says have already filmed) into theaters before 2025 ends. The Titanic director isn?t exactly known for economy when it comes to runtime, budget, writing, or any other aspect of filmmaking, and that?s why the planned trilogy has spawned into a five-movie franchise, allegedly, but some official fresh casting news makes the sequels feel more concrete.