Author and "Author"

Generally speaking, there is a separation, as there should be, between the one authoring a work and the persona that sneaks into the work, however conscious or unconscious. There is a time and place for the author to place his/her entire self into the work explicitly (such as with autobiographies) and to purposely constrain him-/herself from allowing even shreads of the self to implicitly enter the work (such as with technical writing). I believe the true blend of Hitchcock and "Hitchcock" scenarios is in fiction writing/production, where the man's style and experiences influence the story as does the hype or image created by "the industry."
Also, although intentionality has eluded many as to its importance, its usefulness may be evident in this conversation. Some stories are more powerful or gain larger reception Author and "Author" are less defined. A quick example of this is the film 8 Mile, where most of the excitment about the movie came from talk of it being a fairly accurate biography of Eminem, though Eminem never endorsed the movie as biographical. Having the lines blurred, the movie gained an audience that might not have been there. In other cases, the separation gives the author greater credibility because of a perceived objectivity towards the subject matter of the work.