'Cinematic virtual reality (CVR) and augmented reality (AR) technologies are emerging as storytelling media that enable practitioners to move from traditional 2D filmmaking to explore narratives within a frameless screen. This article describes the challenges of writing an interactive extended reality (XR) documentary for a site-specific location. It focuses on the award-winning, practice-led research project, A Miscarriage of Justice XR, produced at Melbourne’s Pentridge Prison heritage precinct in 2020. It claims that the screenwriter is the principal designer of augmented and virtual reality documentaries and that conceiving and composing XR experiences requires taking an “experience design” (XD) approach, exploiting the “user’s experience” (UX).' (Publication abstract)