'Immortals' was very much a martial arts based training program - a lot of body weight stuff, very little in the way of actually lifting heavy weights, and a very, very low calorie diet.

In this quote, Henry Cavill describes the training regimen he followed for his role in Immortals, emphasizing that it was heavily influenced by martial arts. He explains that the training program focused on bodyweight exercises rather than traditional weightlifting, which suggests a focus on functional strength, agility, and endurance. The mention of "very little in the way of actually lifting heavy weights" highlights that the regimen was designed to build strength and conditioning in a different manner, more akin to the movements and physical demands of martial arts.

Cavill also mentions that the program included a very low-calorie diet, which would have been essential for achieving the lean and toned physique required for his role. A low-calorie diet is often used to reduce body fat and create a more muscular appearance, particularly for roles that demand an aesthetic of athleticism and defined musculature. This suggests that Cavill’s training was not only about strength but also about achieving a particular physical aesthetic for his character in the film.

The origin of the quote comes from Cavill's personal experience preparing for his role as Theseus in the movie Immortals, where his physical transformation was a key part of the character’s portrayal. Known for his dedication to physical fitness, Cavill has often discussed how he tailors his training and diet based on the requirements of each role, using various approaches to achieve the necessary results. This approach reflects his belief in customized fitness programs that align with the demands of a particular character or project.

Ultimately, Cavill’s quote underscores the discipline and commitment involved in preparing for a physically demanding role, as well as the specific training techniques and dietary adjustments needed to achieve a desired physical result. It serves as an example of how tailored fitness regimens, based on the unique needs of a character, can lead to dramatic changes in both strength and physique.