"Yes but they should all be working at the behest or dare I say it, the direction of the director, no?"
Surely you have to acknowledge that this is not a constant from film to film? In principal, yes, the director's function is to organise various aspects of production; and as such, s/he usually plays a significant and shaping role in creative decisions. Some filmmakers take on more technical responsibilities than others, but ultimately most are reliant on the skills of different personnel to facilitate their wishes. Again, this introduces all kinds of variables and subtle personal/individual inflections that shape or alter the finished product.
Of course a director will express degrees of approval or disapproval with the finished product, but for budgetary reasons and time constraints (the influence of producers/studio financiers), there are also inevitably elements of compromise involved.
Which brings me back to my original point: The statement "as the director intended" prinicpally serves a marketing function that helps neatly organise viewer perceptions and patterns of consumption. It's a necessary oversimplification that serves a commercial imperative and is not an accurate reflection of the process
es involved in filmmaking.
Sorry if this sounds pedantic, but people continually stressing that a film is "as the director intented" grates on me somewhat. If you look back to the Hollywood studio era (roughly from the 1910s to the 1960s), filmmaking was largely regarded as a producer's medium, with a factory line approach to production where the director (with a few exceptions like Hitchcock) was viewed as another technician and generally overlooked when films were marketed. Instead, the names of producers, stars, and the studios themselves (which had carefully constructed identities) were displayed most prominently on film posters and in newspaper and magazine advertisements, etc...
Oh, and by the way, I'll give you a subtle
on the xenosmurf front...