A production managing method for production of motion picture photo film is
provided. At first, film web is slitted to produce continuous photo film
having a predetermined width. Production managing information is written
to an RFID (radio frequency identification) tag, and includes a roll
number and slitting number, which are related to the film web and the
continuous photo film. The continuous photo film is cut to produce motion
picture photo film. The production managing information is stored in
association with the motion picture photo film. The motion picture photo
film is checked. If the motion picture photo film has a defect, the
production managing information may be referred to for detecting a portion
of the film web or the continuous photo film from which the defect
derives. Other motion picture photo films with a defect will be traced.