PURPOSE: To make possible selective use of regular or long-length magazine by providing a common positioning means and two sets of drive shafts, etc.

CONSTITUTION: A regular magazine MR loaded in the magazine chamber 50 of a cinecamera C is positioned by a detaining pawl 140, the spring members 151, 152 of a cover 60, supply- and take-up drive shafts 70, 80 and the film driving condition is observed through the window 61 of the cover 60. A magazine M for long-length film provided with escape holes 35, 36 in the shafts 70, 80 is similarly positioned by the pawl 140, members 151, 152, spring members 153, 154, supply- and take-up drive shafts 90, 100 and an idle roller 32 is turned by way of the shaft 80. These shafts 70 and 80, 90 and 100 are turned by changing over of the clutch through magazine detecting member.