In a film feed device using a film having two perforations per frame, a perforation width and a perforation interval which are detected by one perforation sensor during a film feed operation are measured as times by timers in a microcomputer or as film moving amounts by a perforation detection circuit. When the time or the film moving amount measured as this perforation interval is less than the value obtained by multiplying the perforation width by a predetermined value, the film feed operation is stopped by a motor driving circuit and a motor. With this operation, even if the film position deviates from a predetermined position at the start of a film feed operation, the film can be accurately aligned with a correct position by using one perforation sensor.