I got this question recently:
“I currently have 2 producers reading my screenplay, one of them mentioned I may want to look into getting a good non-disclosure agreement (NDA) template to include when speaking with potential producers to further protect myself. My screenplay is WGA registered, so I was wondering if an NDA is really necessary and what the proper etiquette was for asking producers to sign one.”
I’m not a lawyer so I’m probably not the best person to ask about this. I’ve never used a NDA when making submissions and I suspect you would turn off more than a few producers if you tried to get them to sign it.
In my experience novice writer’s worry way too much about people stealing their “great” ideas. A friend of mine sent me a great quote the other day.
Don’t worry about people stealing your ideas. If your ideas are any good, you’ll have to ram them down people’s throats. – Howard Aiken