This thesis is focused on digital image postproduction -- specific field, which is responsible for digital creation and manipulation with image data of a feature film or a commercial. To achieve that, it uses large amount of human resources and the newest computer technology. The aim of this thesis was to review actual situation in film production from the informatics point of view. That comprises of explanation of field specifics, identification of information system in a typical postproduction house and finding ways how to effeciently manage postproduction projects through that. Thesis is designed as a complex practical guide, which is well understandable both to inexperienced people and proffesionals and delivers them useful information. It can be used by existing employees of a postproduction house (primarily managers and heads), freelancers or prospective future employees. This thesis highlights importanant aspects of postproduction, connected risks and helps people's to better orientate in this field. Outputs are numerous table summaries, recommendations, tips and hints and examples of possible solutions of actual postproduction problems. They are based on many internet sources and my own previous experience as a 3d graphic.