i understand it when competitive people talk smack about their opponents, which often goes hand-in-hand with healthy competition.
The same thing can extend to the advocates of particular movie studios, just as it more commonly does for sports teams, and few studios are seen as competitors as much as Marvel Studios and DC Entertainment.
Smack starts flying around 21:40, though it’s worth noticing how diplomatic Joe and Anthony Russo are, as compared to Zach Snyder.
I bring it up because recently Zach Snyder (director of Man Of Steel and the upcoming Batman v Superman: Dawn Of Justice) recently commented on Marvel’s Ant-Man movie, calling it the “flavor of the week (which is a pretty silly comment, if only because one of the greatest mistakes Warner Bros. made–and seems to continue to make, though to a lesser degree–was relying exclusively on Batman instead of developing other characters. His comment also conveniently ignores that DC is apparently developing a movie based on Booster Gold and Blue Beetle, both of whom aren’t exactly well-known).”
Though more importantly it’s a really douchy thing to do, and not necessarily true because, unlike what Snyder may think, there are no American comic book characters comparable to any sort of mythology. Batman and Superman are two of the earliest comic characters, but that’s it; while the deities that make up mythologies like the Greek deities, for instance, at a certain point in time literally were objects of worship which is more in line with the way people think about God and Allah today.
Superman and Batman? Not so much.
Recently Sebastian Stan, of Captain America: The Winter Soldier and the upcoming Captain America: Civil War commented on Snyder’s comment, and he very tactfully differed about how he felt about such matters.