Justice League was undoubtedly a divisive movie, but even its staunchest defenders admit that the CG hatchet-job on Superman actor Henry Cavill's face to remove his moustache was laughable.
It's something that continues to be mocked on a regular basis months after the film's release (and probably will for quite some time to come), and now even Zack Snyder has joined in.
This is not the first time Snyder - who wouldn't have had anything to do with the reshoots involving Supes and his floating top lip - has thrown shade at Justice League or the man who took over when he left the project, so it seems pretty clear that he wasn't happy with the end result.
So far, the director has declined to respond to any inquires about the fabled "Snyder Cut", but it may only be a matter of time.