This camera features a film chamber lock (fim chamber can not be opened if a film is not rewound) CAUTION: if the film was not rewound, opening the back cover with this method will fog the film; use a film changing bag, completely dark room, or place the camera under a thick blanket. To remove the film from the camera in case of a malfunction, use the following procedure: 1. Turn the camera off. 2. Turn the function dial to the ISO position. 3. While pressing the function button and AEL button, turn the camera on. The film transport motor will activate for a second to release the film-chamber lock. The back cover can be opened. When the camera is open, gently pull the film off the take-up spool and rewind it back into the cartridge. Contact an authorized Konica Minolta service facility.