https://newenglandfilm.com/magazine/2008/07/the-critical-importance-of-a-quality-script
The script is the blueprint or template of the film. Like a blueprint for a physical construction, such as a house or multiple level building, if it’s faulty the building will fail.
https://thescriptlab.com/features/screenwriting-101/3380-how-to-write-a-thrilling-action-hero/
Die Hard is ranked in many opinions as one of the greatest Action-Adventure movies ever made. But it wouldn’t be so highly regarded if its screenplay were unimaginative. Writers Jeb Stuart and Steven E. DeSouza crafted a screenplay that moves, introduces characters fluidly, and conveys fast-paced action scenes and tension in creative and thrilling ways.
http://thehathorlegacy.com/why-film-schools-teach-screenwriters-not-to-pass-the-bechdel-test/
I had to understand that the audience only wanted white, straight, male leads. I was assured that as long as I made the white, straight men in my scripts prominent, I could still offer groundbreaking characters of other descriptions (fascinating, significant women, men of color, etc.) – as long as they didn’t distract the audience from the white men they really paid their money to see.
http://www.inquiriesjournal.com/articles/172/the-significance-of-the-screenplay
…there is a strong case to support the notion that the most vital piece of a film is the screenplay, making the screenwriter a film’s most valuable—and often underappreciated—player.
https://newenglandfilm.com/magazine/2008/12/adapting-a-novel-or-non-fiction-work-to-film
The task now is to find the visual story hiding among all those words. To do that, you must first fix in your mind the difference between a film story and a written story. Film comes at us with sound and color and movement. We discover the story as the images go by. We are swept up in an intense, two-hour experience, enhanced by the theater’s cloak of darkness. A novel, by contrast, plays out entirely in our mind, where our inner eyes transform the words into mental pictures.
When submitting your screenplay for consideration to an agent, production company, and so on, it must not have any typos, coffee stains, copy stains, missing pages, and your screenplay must be properly formatted otherwise your script will be rejected because you will be viewed as an amateur.
https://newenglandfilm.com/magazine/2010/09/the-pitchfest-youve-written-your-masterpiece-now-what
A pitchfest is like an antiques roadshow, except with screenplays instead of cut glass punch bowls, and Ray Ban-wearing Hollywood producers instead of bow-tied antiques appraisers. But the process is basically the same. Writers stand in line, and when their turn comes they have a few minutes to present their scripts to the producers before being told to make way for the next nervous bard in line.
https://newenglandfilm.com/magazine/2011/11/ask-the-screenplay-doctor-script-structure
Structure is the framework upon which your screenplay stands up, and lack of a solid structure — yes, you guessed it — will result in your script falling down, or, in better terms, getting rejected by film industry folks. A solid structure with strong turning points will demonstrate to readers that you know how to craft a savvy screenplay. Succinctly following your protagonist’s journey will enable you to craft a solid structure. Regardless of your script’s genre, careful assembly and construction of each act is imperative to writing a successful screenplay.