The documentary "Supersize Me" is a self-reflexive documentary that follows filmmaker Morgan Spurlock as he eats only McDonald's food for 30 days. It uses a linear narrative structure and various camera techniques like mid shots and tracking shots to examine the themes of health, obesity, fast food, and their impacts. Through the use of graphics, archive footage, editing techniques like montages, and original music, the film critiques the fast food industry and America's obesity crisis.