The Slumdog Millionaire filmmaker and the Ex Machina writer/director collaborated on the 2002 zombie thriller starring Cillian Murphy and they are now working on a new film 28 years later, that could potentially launch a trilogy. According to The Hollywood Reporter, Boyle is attached to direct the first instalment while Garland would write all three, if greenlit Boyle and Garland revealed in an interview with Inverse last year that they were developing the idea. "We're talking about it quite seriously, quite diligently. If he doesn't want to direct it himself I'll be well up for it…”