Interactive narrative has always been the focus at inkle (80 Days, Sorcery!), but the independent studio's latest game is something of a departure in its presentation. Previous games focused on describing a world through elegant prose, but the next project will be a 3D adventure. This talk introduces the concept of an "interactive film script", using inkle's open source narrative scripting language, Ink. As a development philosophy, taking a script-first approach promotes narrative pacing and continuity as a primary goal in development. How can ink, a text-based format, be used within a freely explorable 3D scene? This presentation will demonstrate with practical examples how entire scenes of flexible dialog can be written and tested in isolation, before they're easily imported into Unity to be played with no modification.