Actors undergo significant physical transformations for their roles, often involving intensive training, makeup, and dietary changes. Notable examples include Michael Fassbender's drastic weight loss for 'Hunger' and Ana de Armas' extensive preparation to embody Marilyn Monroe in 'Blonde'. In Bollywood, Kamal Haasan's transformation for 'Indian 2' showcased his dedication through advanced prosthetics, while Parul Gulati's portrayal of a serial killer in 'Silence 2' involved a striking shift from her glamorous image. Sharvari Wagh's role in 'Munjya' required a complete CGI character with real-life growls, highlighting her commitment. These transformations underscore the lengths actors go to in order to authentically portray their characters across genres and cultures.