Generally, great writers are not eclectic. Each tightly focuses his oeuvre on one idea, a single subject that ignites his passion, a subject he pursu… - Robert McKee

"Eavesdrop on any coffee shop conversation and you'll realize in a heartbeat you'd never put that slush onscreen. Real conversation is full of awkward pauses, poor word choices and phrasing, non sequiturs, pointless repetitions; it seldom makes a point or achieves closure. But that's okay because conversation isn't about making points or achieving closure. It's what psychologists call "keeping the channel open." Talk is how we develop and change relationships."

"We must realize that a screenplay is not a novel. Novelists can directly invade the thoughts and feelings of characters. We cannot. Novelists, therefore, can indulge the luxury of free association. We cannot. The prose writer can, if he wishes, walk a character past a shop window, have him look inside and remember his entire childhood. Exposition in prose is relatively easy, but the camera is an X-ray machine for all things false. If we try to force exposition into a film through novel-like free associative editing or semi-subliminal flutter cuts that "glimpse" a character's thoughts, it strikes us as contrived."

What seems is not what is. People are not what they appear to be.