Canon vs. Rulebook. If you lurk in the caches of player boards and other online councils, you'll see there are some carefully crafted divides. RPG players see choices as the future of their media, they create ever escalating asymmetrical choices to continue the media's true unspoken goal: problem solving, and MMORPG's like World of Warcraft try to simulate the near infinity of outcome. The story can have no end. No one character remains so central their death ends all connections (deaths that ends all connections in film: Neo's, Emperor Palpatine's). The idea of canon is opposite, novels, comics and film celebrate canon, which employ fewer characters that have limited range in behavior. Subtle shifts mutate story and characteristics but not the meaning (Burton versus Nolan's Batman). The difference between playing an elf versus playing Luke Sywalker seems pretty obvious, the elf has no inherent narrative, Luke IS the narrative. The confusion of watching a linear Prince of Persia to an audience of gamers seems lost on a studio executive but to even the casual gamer that plays POP it must be an extreme disconnect. What they used to inhabit and control now is under the control of a predetermined outcome, completely antithetical to the medium he emerged from. A devolution in storytelling. Watch out Hollywood.