4. Charlize Theron Learned Boxing for Monster
Charlize Theron’s portrayal of serial killer Aileen Wuornos in Monster is a study in transformation. To embody Wuornos’s hardened toughness, Theron took boxing lessons and radically altered her appearance, gaining weight and changing her posture.
The boxing training not only added physical authenticity but also helped her channel the emotional intensity and resilience of her character. Her fearless commitment earned her an Oscar and critical acclaim.