I use a spiral reel with two little clips that hold the film. The reel works by twisting the sides back and forth until you get to the spool, which you cut off.
Most of the time this type of a reel works great, unless it is wet. If the reel is not perfectly dry it is impossible to load the film because it sticks to the plastic.
But I have devised a way to overcome that problem, that is: When you load the film, have a bowl of water to dip the reel in. Continue dipping the reel in the water until the roll is loaded.
It works like a charm! Try it!