As if the prospect of a showdown movie between two of the most iconic superheroes of all time wasn't a daunting enough task, the film is also set to include cameo appearances from Aquaman and Cyborg, not to mention a significant role for Wonder Woman, who will reportedly be facing off against Doomsday. In addition, the trailers have made it clear that The Joker also has his hooks in Batman (it appears he has killed Robin), and the film will presumably have some sort of link to their encounter in Suicide Squad a few months later. Considering that even the esteemed Marvel have begun to receive criticism for over-stuffing their movies with characters and subplots, it would surprise roughly no-one if Batman V Superman had far too much content for one film. It's ambitious as hell and will be extremely impressive if Zack Snyder pulls it off, but it's hard not to feel like it's trying to spin too many plates at once.