When’s the last time you read the script?
Your Script Supervisor is supposed to get in your face and interfere — their job is to make sure you aren’t screwing anything up. Listen to what’s being said.
It doesn’t mean you can’t change the situation, or decide that what your script supervisor is saying no longer matters, but at least stop what you’re doing and listen. The last thing you need is to see some glitch during the premiere that you could have avoided by listening to your script supervisor.
It’s good to have a plan and to know it well enough to do it, so that if you have to break it, you know what will be affected and can respond accordingly.