One of the more fascinating things about Blade Runner was how it built not just one world, but several, with several mentions in the film of off-world colonies the audience never actually got to see. It was from one such off-world colony that Roy Batty and his replicant cohorts escaped after staging a violent rebellion, and Batty's final monologue is full of intriguing references to the things he's seen in his time exploring and colonising new worlds ("I watched c-beams glitter in the dark near the Tannhäuser Gate..."). Whether the new Blade Runner film will leave Earth and give us a peek at some of these other worlds is a tantalising question mark, but a question mark all the same. It could tip the film more toward sci-fi and in the process lose some of that Earth-bound noirish flavour, but the prospect of showing us what Roy Batty saw that made him so haunted must be all-too tempting for screenwriters Fancher and Green.