Now I'm curious.
I'm not flaunting unprecedented writing skills; fact is, pleasing fans is incredibly easy. If I said "please fans and write a good movie" I would have raised a challenge, but pleasing fans? Just drown the script in fanservice, stick to the original material and you're good to go.
A CV movie for the fans wouldn't be that hard to write. A pre-title sequence foreshadowing or depicting Dracula's origins; a first action sequence of the unnamed hero pulling some whip stunts on some creatures in ominous looking woods (but in daylight, building the tension but not delving deep into horror-themed material yet). At this point...
... in a normal movie you'd need to insert something like, well, a cast. Other characters. The hero gets the village at the foots of the mountain where Drac's castle is. We're introduced to the love interest. We get to know who he is. We get some exposition on the story.
But we can skip that. It's a movie for the fans. They don't need explanations. I can drop in that Drac is reborn every 100 years without much explanation - they already know. Heck, I can have Simon enter the castle 20 minutes into the movie, no question asked, and have him meet the Girl™ or the Supporting Cast Sacrifice™ inside the castle and keep the movie afloat by throwing the fanservice around at every corner. And as a fan, I would be probably pleased by 90 minutes of nonstop fanservice action with daggers and whips and thrown axes and holy cross lightbombs. More than with a movie that raped the game's continuum in order to have a narrative.
However, such movie would be unwatchable for nonfans. That's why I mark the difference between a movie that pleases the fan and a good movie that pleases the fan. The second is horribly hard to realize because it would require you to re-interpret the source material (it can't stand on its legs in terms of narrative, pacing and story) and doing so while pleasing fans is very hard. I would also assume there's some sort of curse looming over making a movie about a videogame while still aiming at having a movie that works as a film on its own, because everyone who tried failed miserably.
Think of all the Street Fighter tie ins: they stomped on the source material in order to make a more universal product, and made horrible movies that displeased the fans.
The tie-ins that *sort* of worked? Mortal Kombat. Silent Hill (till the last 20 minutes at least). As movies they were fairly terrible, but they stuck to faithful fanservice and the fans appreciated them for it.