Joss Whedon's introduction to the blockbuster will have serious ramifications to the screenplay, rewriting the ending that Zack Snyder had in store.
Having to confront a family tragedy, Snyder has been given leave from his passion project as DC bring in their Batgirl filmmaker.
The Marvel moviemaker was stopped on the red carpet to talk about his defection to DC and what he wants in his superhero heroine.
The president of the superhero studio gave an insight into his plans on a number of topics, ranging from their over 18 plans to the involvement of Spider-Man and more.
The 52-year old veteran screenwriter, producer and director will take the reigns of the superhero spinoff, bridging the divide between the two rival studios for the first time.