Justice League was clearly a passion project for Zack Snyder, especially since it was set to close out a trilogy of sorts that began in Man of Steel and continued into Batman v. Superman. Following his untimely departure from the project and the subsequent release of Joss Whedon’s theatrical cut, he continued to speak on his cut and his hope of getting it made. Add in his passion for filmmaking in general, and it’s understandable why he’s now chosen to forgo payment.