So how did they get into superhero shape? Momoa said the cast would work out together on set in a “small studio space” set up just for them. Because their characters all have unique looks and special powers, they each needed a workout tailored just to them.
“Ezra [Miller]’s working on agility and mobility, Jason is leaning and shredding, I’m trying to get big like a college athlete,” Ray Fisher said of their workouts, adding, “It’s worth saying that most of the muscles in that gym belong to the Themyscirans, the Amazons in there.”
The cast members owe their superhero bodies to a team of trainers that included Mark Twight. Twight, who is an accomplished athlete in his own right, has become well known in Hollywood for being able to quickly and effectively mold the bodies of action stars. His work not only includes the ripped physiques of the entire Justice Leaguecast, but also the bulging biceps in 300.
In 2016, Twight revealed to Vanity Fair that he was able to turn the 300 actors into gladiators through a training regime that first meant stripping their bodies of any fat by implementing special forces workout techniques, including high-intensity interval programs using compound movements. As Vanity Fair explained, that included “clean, press, and snatch using barbells and kettlebells, which engages both large and small muscle groups from the feet all the way up through the legs, glutes, chest, back, shoulders, arms, and hands.”
For each client, Twight said it all comes down to teaching them about movement and proper techniques—not just sculpting their end appearance as quickly as possible. His goal is “to create a culture of physicality on these productions that will follow on from film to film,” he explained to Vanity Fair.
To see Twight's work in real life, and maybe get some inspiration to hit the gym, check out Justice League when it comes out Nov. 17.