1. A system for delivery of digital electronic cinema to a plurality of users including theaters, comprising: a headend system comprising a baseband processing system which receives analog cinema film as input, a storage system which receives digitized cinema files from the baseband processing system, a radio frequency transmission system which communicates cinema and data files to various users including theaters as radio frequency bit stream, and which further communicates data from said users, and a management system which controls transmission and storage of cinema and data files; a theater system comprising transmission line interfaces at theaters designated to receive cinema and data files from the headend system, receiver-decoders which receive the radio frequency bit stream and produce decoded cinema and data files at baseband, a storage playback system which stores cinema and data files until needed, and a secure projector including a decryptor for playing back encrypted cinema files; an editor's system which allows authorized viewing and editing of cinema files, wherein the editor's system provides capability for editing and baseband processing of cinema files at remote locations, and transmits edited cinema files back to the headend system.