In the preliminary task for a film project, the author's group made several mistakes including poor editing, camerawork, and lack of organization. They did not properly plan the location or how it related to the storyline. In the main task, the group improved by carefully choosing a location that realistically fit the storyline and discussing how different areas should be used. They also took more time to plan shots and film consistently to make editing easier. Overall, the author learned from the mistakes in the preliminary task and applied those lessons to better organize and execute the main task.