Following in the footsteps of other prestigious actors like Charlie Chaplin's humoristic silent films, Jim Carrey (The Mask, 1994), and Heath Ledger (The Dark Knight, 2008), Christian Bale has become well-known for developing his characters through a variety of Stanislavski-based acting methods. This is an example of method acting where the actors plunge into the role in a way that makes it seem as though the story has been swapped for reality. The Russian actor and director Konstantin Stanislavski invented this technique because he considered that performers needed to uphold honesty and focus in order to perfect the facial expressions, intonations and body language of the character they are playing.

At the tender age of 13, Bale landed his breakthrough role as the lead in Steven Spielberg's coming-of-age war film "Empire of the Sun" (1987). Now, having worked in this industry for 35 long years, he has carved a name for himself for portraying some of the most versatile and appealing characters. In his entire filmography, there are several roles for which he exploited his artistic agency to transform his body, mind and soul. He does not just spin the roulette wheel when an acting job comes his way.

Young Christian Bale in Empire of the Sun.

Numerous actors have turned to method acting to prepare for their roles but I have hardly seen anyone go to as great lengths as Christian Bale has over the last two decades. One of the most famous transformations was for the horror cult classic "American Psycho," where he effortlessly essayed the role of a notorious psychopath with a penchant for murder and mayhem. Whether it's following a strict diet or chain-smoking cigarettes and drinking whiskey, he leaves no door open to lose weight. Interestingly, his character in this movie was not inspired by any serial killers, but by a Tom Cruise interview. The exaggerated expressions and movements used to model this character's personality made me unnerved for the entire duration of the movie.

Unquestionably, Christian Bale underwent one of the most startling bodily transformations in movie history for his performance in the 2004 psychological thriller "The Machinist." In the movie, Bale plays the distressed titular character who battles psychosis, remorse, and delusions as a result of going a year without sleep. The actor shed a lot of weight and customized his workout in a way that allowed him to concentrate on a different muscle region each day.

Despite several spin-offs and numerous actors reinventing the character, Bale and director Christopher Nolan's take on Batman continues to stand out. They made Batman appear to be a morally gray savior and with terrific cinematography, the movie is still remembered ten years after it was first released. Starring as the Dark Knight in one of the most successful film franchises of all time further engraved Bale into the superhero folklore.

The actor has to put on almost 200 pounds to portray the pot-bellied con artist Irving Rosenfeld in "American Hustle." His layered and carefully crafted performance makes you root for his character and leaves you wanting more in his quest for love and partnership.

Christian Bale in American Psycho.

Gorr the God Butcher, who appears in "Thor: Love and Thunder," has a convoluted character arc as a loving parent who turns really violent and demonic due to bad influences, but who ultimately might be able to atone for his sins. Bale completely embraces this role, taking on the appearance of a grown-up Gollum and successfully portraying one of the scariest Marvel villains. Gorr is made sympathetic by Bale's depiction of a villain going through several phases of mourning.

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As Bale gets older, the actor is less interested in roles that call for extreme physical transformations, however, his versatility and eagerness to try new things remain unaffected. In his latest movie, "Pale Blue Eyes," there is no method acting yet he manages to light up this dark yet dull crime thriller. In the role of a detective, Bale's eyes burn with intelligence and seem to see right through hazes, lies and deceit.