In the wake of the soaring success of 'Superman', Gunn briefly spoke about recruiting a 'Guardians of the Galaxy' friend to play Kal-El's father.

James Gunn ’s Superman is full of surprises, but one of the most unexpected reveals comes in the form of Guardians of the Galaxy alum Bradley Cooper stepping into the role of Jor-El, Superman’s Kryptonian father,

James Gunn says he cast Bradley Cooper as Jor-El in Superman to follow in the footsteps of Marlon Brando’s iconic portrayal.