I found this blog recently. I have not taken a closer look yet, but this blog post was the first I met and I think it is really good. And it amused me too.
You can read it here: Some tips for the noobs
The article mentions three tips for screenwriters working on their first script. These are in short: Correct format, write as you observe the events and don’t bore me.
The first is necessary to find a reader that will take you seriously. Without correct format on the script you will appear like an amateur.
The second is the difference between a screenplay and a novel.
The third – “don’t bore me” – was what made me amused. It was such perfect sentence. It says it all.