If you're looking for a place to start, consider this: Every single story you've ever loved is all about a protagonist (one or more) who wants something they don't have, and they want it more than anything, and they do everything they can to get it. Start with that and see what happens.
@TheCineprism The reason filmmakers are successful and sustain careers is that the embrace new techniques and new technologies. Period. (Except for Fred Wiseman of course...)
Every writer fears that following a formula will make their work feel predictable.
Steven Pressfield has spent decades studying the craft of a great story. Here's how he thinks about the tension between principles and originality:
"When I first heard some of these principles, I thought, well, I'm not gonna write this formula shit. But you realize that these moments work.
If you have a hero who doesn't change and you read the book over, people go, 'whatever.' I look back at the Iliad or The Odyssey or Shakespeare, the hero does change. It has to change.
The trick is, can you do it? Can you put these timeless principles in a new way?"
He then breaks down how The Big Lebowski is really a detective movie:
"The Dude is kinda given an assignment at the start by a rich guy. 'Here's the million dollars. I want you to give it to save my wife who's been kidnapped.' The Dude is kinda like a detective. He's solving what happened to Bunny.
There's even a femme fatale that becomes kind of a love interest, just like in every detective story. But the spin that the Coen brothers put on this thing is normally in a detective story, the hero is a hard-bitten detective. But to do it with the Dude, a stoner...that's the spin.
So that makes every scene new. In detective stories, the detective always gets beaten up a bunch of times. The Dude gets beaten up over and over. But it's always new because he's not the hard-bitten detective. He's the Dude.
If we can follow these principles but put a spin on them each time, make them just a little bit different, then everything is okay."
There's another way that the Coen brothers were playing with form (and formal principles) here, in that they surround their protagonist with characters are are all, by nature, extremely ACTIVE, while the Dude, by nature, is extremely PASSIVE. But, as you clearly point out, the story ACTIVATES the Dude, though his nature doesn't really change. This confuses many people, who think The Big Lebowski is a successful movie with a passive protagonist, which it is not.