linguistic:paraphrasing, information:filtering
Getting audience feedback and reshooting

According to Vieira, MGM had few failures during this period, and numerous blockbusters. Among the reasons was Thalberg's unique system of developing a script during story conferences with writers before filming began, and later giving "sneak previews" followed by audience feedback through written questionnaires. Often, where he felt improvement was needed, he arranged for scenes to be reshot. As Thalberg once stated, "The difference between something good and something superior is often very small."