If you're referring to the Quileutes' lupine origin, the Quileutes might say your assertion was false. In other words, that their ancestors really did come from a wolf. Are you claiming they're fibbing about this? Are Christians fibbing when they say God created Adam and Eve?
Criticism correct but unimportant?
If you don't think this is an important point, again, go ahead and admit she fibbed. Then we can move on.
Natives don't care?
Besides, you can't be sure what a Native actor like Gil Birmingham was thinking. We've discussed this issue before. Actors may be hungry for a job. The "good" Native scenes in the script may be cut while the "bad" (stereotypical) scenes make it into the movie. Actors may believe they can influence the writers or director during the pre-production process.
In any case, I don't blame actors for playing questionable roles. And from what I've read, Twilight's Indians aren't that bad. I'd blame the actors only if the roles were truly vile. (For instance, I don't blame Adam Beach for playing Charles Eastman in Bury My Heart at Wounded Knee, but I do question him for playing the rapacious Blue Duck in Comanche Moon.)
No, the blame goes to the writers, directors, and producers. They control the Native portrayals and determine if they're good or bad. If one actor doesn't play a stereotypical role, someone else will play it instead. Either way, the movie will get made and it'll affect the public's perceptions.
If you don't think fictional stories affect the public's perceptions...well, we've discussed that before, too. For more on the subject, see The Influence of Movies and Why People Believe Movies. Read 'em and weep.
All clear, Anonymous? Thanks for your comments, and better luck next time.
For more on the subject, see The Best Indian Movies.
Below: "I'm a hottie, so who cares if I'm an Indian?"