Monster is a biographical crime drama film that earned Charlize Theron an Academy Award for Best Actress. Theron undergoes a stunning transformation to portray Aileen Wuornos, a real-life serial killer. The movie delves into Wuornos' troubled life and the events that led her down a dark path. Theron's performance is haunting and powerful, capturing the complexities of the character. Monster is a gripping and thought-provoking film that showcases Theron's incredible acting skills.