The script and VTR (Video Tape Recorder) department provide the ability to relocate and playback the various scenes and shots that have already been completed. The script supervisor takes detailed notes about what has been filmed, while the VTR crew actually records onto videotape what is being shot through the camera. This allows instant play back, which can be especially helpful when using motion picture cameras.
The script supervisor works closely with the director by taking detailed notes concerning what has been shot, needs to be shot, and also notes any deviations from take to take. He/she also makes sure that the dialogue corresponds with the script. The script supervisor also takes logging notes that are essential in the post production editing process, such as locating shots and finding the best takes. Many times the script supervisor assumes the role of continuity, ensuring the consistency between scenes and shots.
The teleprompter is a device that mounts to the front of the camera and contains a scrolling text for the actor to read while looking into the lens. This technique is also used by newscasters. The teleprompter operator helps set up the teleprompter on the camera as well as the computer that provides the scrolling text program. This person is usually given the script ahead of time so that they can enter it into their computer before arriving on set.
The video assist person operates the VTR (Video Tape Recorder) during production. Most film cameras include a video tap that allows the VTR to record and instantly playback what was just filmed. Since you can't review 35mm film without it getting processed in the laboratory first, this can be an especially useful tool on set. Video assist is the term used to describe this record and playback process. Reviewing the footage instantly allows the director to confirm performances, camera focus, framing, choreography and other elements for accuracy.