De fleste forstår Batman som en ret muskuløs karakter, det er lidt nødvendigt når man ikke har nogen superkræfter at falde tilbage på. Af den årsag mente nogle af Robert Pattinson var et dårligt valg, eftersom han, eksempelvis under Twilight-sagaen, var en kende ranglet.
Men det skulle vise sig at Pattinson har trænet nok så gevaldigt for at blive klar til rollen, og eksempelvis har hans transformation været så chokerende, at hans ven Eddie Redmayne knapt kunne kende ham.
I The Tonight Show Starring Jimmy Fallon siger Redmayne følgende:
"One day, I went to the gym, and I walked in, and there was this guy with, like, a high ponytail. Massive. Doing the most extraordinary stunts I've ever seen with his stunt director and...and it was that slightly embarrassing thing when you're a skinny runt, and you go into a gym and there's someone...and this is the same gym that, like, Jason Momoa goes to. You're quite used to big guys. And I walk in and there's this guy, and this guy goes, 'hi,' and i go, 'hi,' and then I just sort of sit there watching him do these incredible things while I, sort of, you know, weakly do a sit up in the corner.
Anyway, after, like, forty minutes of doing this, I sort of go - not forty minutes, ten minutes - I go to sort of scuttle off, and as I'm going, this guy goes, 'bye Eddie!' And I look back and it was Rob! And he was so physically changed, and he had a man-bun."
Hvad synes du i øvrigt om Pattinsons præstation i rollen?