Outline or rough draft of a film project — idea with basic structure before finished screenplay. Quick template for funding or development.
You're sitting in the production office with an idea in your head – a story, a setting, perhaps two or three scenes playing out before your eyes. But you don't have a finished screenplay yet, no 120 pages of manuscript. What you need is a particell: a condensed exposé that summarizes the core structure of your film in 5–15 pages. Not a treatment, not a synopsis – but a working document that allows producers, financiers, and development executives to quickly grasp what it's about and why it works.
The particell sits in the production chain between the initial idea and the elaborated screenplay. It describes the central story, the characters in broad strokes, the dramatic structure, and often already the visual or tonal anchors of the project. You don't write it like an exposé for laypeople – your audience is industry professionals. This means: precise, functional, without fluff. You outline the emotional or visual opportunities inherent in the material, where the tensions lie, what the cinematic distinctiveness is. If your film is a heist drama, you don't just describe the heist – you show why the psychological or visual treatment of this subject matter is new.
During the financing phase, the particell often becomes pitch material. It allows funding bodies or investors to evaluate your project without you having already invested half a year of development time. At the same time, the screenwriter works from the particell – it is their working basis, their compass. Some producers refine several particells in parallel to test which version of a story has the most potential. So, you could also sketch out three different dramatic approaches to the same initial situation and then decide which path to take.
The particell is not a rigid format – its length and depth depend on the project. An experimental short film requires less structure than a series pilot. But what they all have in common is their practical purpose: quick communication about the cinematic idea before the full production work begins. It is the tool with which development proceeds – not a description, but a navigation plan.