Thoughts on "Stranger Than Fiction"

After watching the first half of Stranger Than Fiction, I am not sure I am qualified to make a full assumption about its portrayal of writing and writers just yet, but here are my thoughts on it so far. First of all, I am not sure that the writer/narrator is an actual portrayal of writers. She seems more like the stereotyp that people hold about writers: the drinking, smoking, keep-to-themselves, slightly insane type of writers that America seems to think typical. Aside from a few well-known names in fiction (like Hemingway and Poe), I cannot think of any writers who are actually chronic drinkers and crazy people. Maybe they are, maybe I am just sadly mistaken, but it seems to me that if the majority of writers were all drinking/smoking/crazy people, then it would be a well-known fact.
One part that I did think was accurate about the movie was the portrayal of writer's block, and the agony of not knowing where to go with a story. Though I do not claim to be a writer, I have written stories before for classes and know how hard it is when you simply cannot finish them. I don't know how often writers sit and try to visualize a story playing out, as the writer in the movie does, but then again, I am not writing a novel! Is this typical? I would like to know, because maybe it is something that we, as writers, should try in order to truly get inside the characters' heads (maybe not in order to figure out the way that they will die, but in order to figure out the characters themselves).

I also wonder if writers, whether all or some, are pompous and rude like the one in the movie. I have never met an esteemed author, so I can't really make an assumption about this. Writers, like people, are all different, I am guessing, and therefore, it seems that some could be like the one in the movie (big-headed due to their fame) and some could be like just average people who don't treat their assistants like scum. :) Essentially, I do not know whether or not this movie is an accurate portrayal of writers and writing; I think it is too early to tell. I am hoping the writer has an epiphany and finishes the novel and starts treating people with some respect!