To my recollection, I’ve made only a small handful of edits to Wikipedia—a couple at least five years ago, two the summer of 2012, and one or two more recently. Not surprisingly, most (if not all) were related to Bill Finger.
The summer 2012 edits were to the entries for The Dark Knight and The Dark Knight Rises, the second and final films in Christopher Nolan’s groundbreaking Batman trilogy.
I added that the first Batman story to include the phrase “the Dark Knight” was one written by Bill Finger (in Batman #1, 1940). The fact that neither film needed the word “Batman” in the title shows how iconic not only the character but this nickname are.
Note that I did not write “Bill Finger was the first to call Batman ‘the Dark Knight’” nor did I claim that Finger coined the phrase.” I think both were the case, but we may never know for sure. Therefore, to defend my objectivity, I inserted the info in a way that is indisputable.
I feel it is a travesty that Bill’s name is not in the credits of those (or any) Batman movies, but am somehow comforted by the fact that at least Wikipedia has the truth. More people have access to Wikipedia than to the movie…