I got this question recently:
“I have a busy life like everyone else that I know. I have written the dialog and scenes for a screenplay but there are many nuances to doing it right so that a reader will not toss it onto the ‘later’ pile. I’m not planning on doing this as a career so I don’t want to take the time and extreme effort to learn the craft. Is there any service that will ‘do the work’ that is not just a proofing service?”
You should check out this blog post: “How to hire a screenwriter to write your life story or great movie idea“.
The quick answer is “no,” there really is not an easy way to do what you’re talking about. Most services that you might find who are willing to do this are most likely not going to do a very good job and simply waste your time and money.
But ultimately it’s really a matter of how much time and money you want to spend to see your creative vision realized. If you’re willing to hire a good writer and pay them a legitimate sum of money then it is possible. How much you have to pay them will depend on the writer and will also depend on how polished what you have is. A competent writer will probably cost you in the neighborhood of $50 – $100 per hour.
My guess is that most people who pose this sort of question, however, don’t want to spend a lot of money or time. They think they’ve simply got a brilliant idea for a film and want to try and get it made. In my experience novice writers greatly overvalue their ideas. “Great” ideas are a dime a dozen. But what’s not a dime a dozen is a great idea woven into a well executed script. So if you think your idea is brilliant but you don’t want to do any work or spend any money to bring the script to market then, no, there really isn’t any chance that you’ll have any success. No competent writer will write your idea on spec and if you don’t pay a real wage you’ll end up simply wasting time and what money you do spend (see my post mentioned above).