Well, sure, you could do Don Quixote. I guess. Or you could just go with more typical video game fare and make Ivanhoe instead. The cover blurbs just write themselves:

Well, the cinematography looks good. It should at least be a fairly pretty film. I am a little concerned by the action scenes, though. Maybe vintage WW needed a horse, but modern Diana can fly (and outrun bullets). Why are there three separate horse-riding shots? Also... do her fight scenes look like she’s putting in…