Ultimately your job as an actor is to perform however you're...

Ultimately your job as an actor is to perform however you're being asked to perform and there's many different procedures as an actor that you're going to run into that you should be prepared for and be ready to go to work and do the best you can and give the director the best thing you can to hopefully give him things on that day that could be shot preserved and out into a canned, then when they go into the editing room that's where a movie's made.