The documentary Supersize Me follows filmmaker Morgan Spurlock as he eats only McDonald's food for 30 days to document the effects on his health. Some key themes explored include the links between fast food, obesity, and addiction. Through interviews and filming his own experiences, Spurlock examines the debate around corporate marketing practices versus personal responsibility. The documentary uses a variety of cinematography, editing, sound, and graphic techniques to engage viewers and convey its message about the health impacts of a fast food diet.