Membrane:
Flip the ribs bone side up, and take a butter knife and gently work the membrane loose at one end (the smaller end is usually easier). then grab the membrane with a paper towel (to give you a grip) and pull it off. Theoretically it will come off in one piece. Theory generally fails
You may have to go back and pick off the remaining pieces.
Pull back:
No, they aren't cut that way. The meat pull back when the ribs are properly cooked (most of the time
).