2. Those "Desert" Scenes Are Almost Certainly Part Of A Dream Sequence
One potentially curious aspect inherent to the full-length trailer for Batman v Superman shows a strange, desert terrain with a sort of war-esque Batman figure being attacked and apprehended by soldiers with Superman symbols on their clothes. The big question on everybody's lips regarding this scene, of course, is: "What the hell is going on and how does this scene fit into the movie?' Which is probably the wrong question to be asking, actually: in all likelihood, given what we know of the movie itself, said scenes are the result of a dream. Batman is anxious about the power that Superman wields over the planet, and thus the desert-world in which he is forced to face up against "Superman soldiers" is a kind of nightmarish worst case scenario. According to the established plot, Batman v Superman has no room for a reality like this to actually exist outside of it being a dream scene, which means that it seems safe to just assume that these scenes aren't "real," but are visions brought on by Batman's anxiety.