The Securities and Exchange Commission (SEC) plays a vital role in regulating the financial industry and protecting investors. Several movies have depicted the SEC's work in investigating corporate fraud, insider trading, and other financial crimes. These films offer insights into the complexities of Wall Street and the challenges of enforcing securities laws. Examples include movies like 'The Wolf of Wall Street', 'Wall Street', and 'Enron: The Smartest Guys in the Room'. Note that this result does not refer to content of an inappropriate or illegal nature.