I had trouble loading my Leica IIIf with a 35mm film. It is not advancing, and some of the holes were torn in the effort. After much discomfort and destruction of the movie (womp) trying to figure out what I was wrong with, I think it's because the leader strip is too short. The guide strip of the film measures approximately 1 inch and, in the manual, shows 4 inches.
Is that the problem I'm running into? Is there any way to solve that?