[whswhs]

I discussed a lot of approaches in GURPS Adaptations, nearly all of which I've used, other than "play out the exact original storyline." But most basically, when I run a campaign in the setting of a fictional or dramatic source, I tell my players up front that that's what I'm doing; that recruits players who are familiar with it and encourages them to take advantage of the source material for inspiration. Usually, anyway. There was the time when I used E.R. Eddison's Zimiamvia: Only one of five players read the books, and the resulting campaign was in a radically different mood, a mix of Shakespearean comedy and Dumasian swashbuckling.