James Gunn sought advice from Zack Snyder on Superman's red trunks for the upcoming movie. Both Gunn and Snyder have different approaches to filmmaking and the character of Superman. David Corenswet's response about the red trunks changed Gunn's perspective on it.

James Gunn‘s upcoming Superman film will see the titular hero don his signature red trunks, a move that the DC Studios co-head said he went back and forth on, and even consulted with another Superman director about.