Originally posted by pentaxus Maybe there is film in the camera and you reached the end of the roll with only a partial wind. You can't finish the wind because the film can't move any more. You could try to push on the rewind while trying to wind. If you are able to finish winding it is because it is the end of a roll. Don't fire the shutter with a roll of pictures because it will give you a overlapping picture at the end of the roll.
Haha, that's the right explanation. If the end of roll is reached, the shutter will not work.