Writer/director James Gunn has a long history with Cooper, who, of course, was Rocket in the "Guardians of the Galaxy" series. So, it didn't take much arm-twisting when Gunn made a call to the Oscar-nominated multi-hyphenate.

There’s a new DC universe in town that’s being kick-started by James Gunn’s “Superman” this weekend. Headlined by David Corenswet as the Man of Steel, “Superman” is poised to relaunch the DC universe and usher in a more vibrant,

Breaking down the teases and DCU Easter eggs you might have missed in Gunn's Superman, from the possible introduction of a new Justice League to the music cue that's sparked rumors about a different caped crusader.