Unforgiven is an excellent picture and William Munny, the main character is quite a complex fellow (portrayed more through Eastwood's acting than the dialog - the whole script can be printed on a few pages!) I agree with previous posts. You should try and develop your own outline, that list of questions. You will find the exercise rewarding.
I think Clint Eastwood may have set a landmark with Unforgiven, the Western genre in it's classic form has become quite unpopular, maybe because it has become understood as representing gratuitous violence, or hero worship and bad role models - As i see it this picture tries a different theme - In spite of much violent action, actually against such stereotypes (or ambivalent at best). Should you tackle it, congratulations! It is a brave thing to do and deserves to be done well.
Q