Perhaps the greatest example of a steadfast character in a Hollywood movie that I know of is George Bailey from It’s a Wonderful Life. But, George Bailey actually changes in so far as his view of his life and the value of it changes significantly. In Back to the Future, Marty is listed as a steadfast character, but he changes in as much as he’s much more willing to put himself out there when he plays the guitar at the dance. Po, the Panda, another character listed as steadfast, changes by gaining a great deal of self-confidence.
So, what is the acid test? If all of these characters change (and they do), their change must be of a type which doesn’t count for deciding whether they have a change or steadfast resolve.
So, what kind of change does and does not count?