The representation of architecture is to an increasing extent expressed by means of computer-generated animation. The medium of architectural animation thus gets closer to the film without taking into consideration its specific design possibilities.Here the research project "Compositing Spaces" starts. It reveals in which fields architectural animation can get an impact from filmic design instruments. On behalf of film analysis precise stage directions to the virtual camera could be developed. In collaboration with visualizers, film professionals and psychologists the project has taken an unexpected turn and led to a form of expression that involves compositing technique. The project takes with the animation of high-resolution visualizations a most promising and low-priced approach.