Singularly Datarific said:
Because they're based off of a successful series, whether or not it is good, it appeals to its legions of fans.
I don't think that's quite right. I think the idea of it appeals to the fan legion, but the actual movie is usually derided as between meh and FFS!
For further confirmation, see:
The Star Wars prequels
Indiana Jones 4
Terminator 3&4
Pirates of the Caribbean 2&3
Transformers
Prequels: Trashed - Nuke the Fridge: Trashed - Terminator with Boobs; Trashed - Everyone's a Nympho-Pirate! - Trashed; More people can name the actors than the Autobots - Trashed.
But of course, this is only because "we just don't understand how the NEW series is better".
Also see Star Trek, Doctor Who, Being Human or almost every re-make.
{Cuz I know someone will challenge this : None of those were bad, it's just they were a major departure from the original premise in order to appeal to the "youf".)
(Go on, challenge me on The New Munsters)
There's the rare occasion where it works (The Addams Family, Highlander after "That One", Aliens/Alien4) but in general it's the deathtoll only reserved for comic book adaptations.
What Hollywood fails to understand, or want to understand, is that the fans want the fans movie. The public want the public movie. If you hype the fans up with talk of a fan movie, and then pull the bait/switch to a public movie, you gross out the box office.
And then it leaves the franchise bleeding in a gutter somewhere.
Of course, if a fan movie does get out (Dark Knight, Watchmen), then invariably it's ignored by the "reviewers" in favour of the historically inaccurate (Saving Private Ryan) or the plain exploitative (Forrest Gump).
(Yeah, Star Trek etc. weren't historically accurate, but they never claim to be. "Based on a true story" means a little bit more than naming characters after real people,
Good Morning Vietnam)
New Moon actually survives that by being as bad as Twilight. As for accurately representing the book, it's possibly one of the best films out there. Jeezuz, I just squicked myself out.
Although possibly not as much as "The Lovely Bones" will.