As a nod to the live action TV series , Banner 's eyes change color first when he transforms .
Leterrier cited An American Werewolf in London as the inspiration for Banner 's transformation , wanting to show how painful it was for him to change .
As a nod to the live action TV series , Banner 's eyes change color first when Banner transforms .
Leterrier cited An American Werewolf in London as the inspiration for Banner 's transformation , wanting to show how painful it was for him to change .