And nagging in the back of one's mind is the feeling that the writing not only needs to be effective, but also carry a unique sense of vision and personal style. Man, what a pain. By this, I believe, he means to write what you see as if the finished movie is playing in front of you. Moment by moment transcribe those events, and you won't go far wrong, stylistically, in making the film 'happen' in the reader's mind's eye. Ultimately a writer's 'style' goes well beyond how effectively scene descriptions are written.
Style encompasses choices made with dialog, character design, concept, etc.
It's all important stuff, and just the sort of practical stuff all the other seminars, how-to books, essays and professional gurus seem to gloss over. Director Robert Zemeckis said in an interview that the opening shot of a film is crucial to him, and that it rarely changes once it's been designed. Screenwriters could take a lesson from this. Allow yourself some leeway, stylistically, to set the proper tone. I still recall, from my days as a reader, the worst line of dialog to start a screenplay I've ever read.