The fourth edition of this innovative textbook introduces students to the main theories in international relations. It explains and analyzes each theory, allowing students to understand and critically engage with the myths and assumptions behind them. Each theory is illustrated using the example of a popular film. Key features of this textbook include: This breakthrough textbook has been designed to unravel the complexities of international relations theory in a way that gives students a clearer idea of how the theories work, and of the myths associated with them.