Warner Brothers Pictures has no released the clip that “Batman V Superman: Dawn of Justice” director Zack Snyder premeired on the Conan O’Brien show last night. The clip shows a tense confrontation between the Man of Steel (Henry Cavill) and the Dark Knight (Ben Affleck). It’s essentially an extended version of the TV spot that was released the other day. “Batman V Superman: Dawn of Justice” opens on March 25th.