One part of Batman V Superman: Dawn of Justice that people seem to be confused about is the apparent dream within a dream Bruce Wayne has, a “knightmare” in which he’s fighting what appears to be Darkseid’s Parademons in a post-apocalyptic desert. Then he’s confronted by a Superman enraged that Batman “took her from me,” and — when it appears Bruce has awoken from this vision — The Flash (Ezra Miller) bursts in, seemingly rustling real-world papers, and tells Batman that Lois Lane is the key and, “You were always right about him! Fear him! Fear him and find us.”
It would be easy to write this all off as an awfully convenient movie-style dream sequence, where a character knows details and people they shouldn’t possibly know about. But what if it wasn’t a dream? According to Jay Oliva, the accomplished storyboard artist who worked with Zack Snyder on this sequence, it wasn’t just a nightmare Bruce was having. It was — in Oliva’s opinion — a Time Boom.