The document discusses what the author learned from their preliminary task to creating a full product thriller video. Some key lessons included learning camera angles, basic editing skills like cutting and grouping, and applying sound and color editing techniques after researching Adobe Premiere. While the storyboard and schedules were helpful for planning, sticking to them during filming proved difficult. The author had to make changes during filming and ended up needing an extra day to complete it due to time management issues. Managing the actors and crew for indoor versus outdoor locations also presented challenges.