That thing way up in the sky is neither a bird, nor a plane, nor Superman; it's the suspected budget of Warner Bros.' next superhero movie, which will bring Superman and Batman together for the first time on the screen. The announcement of the on-screen pairing of the classic superheroes was made at the Comic-con convention in San Diego on Saturday by director Zack Snyder, who provided few details, except to say that the script is currently being written. Later, Warner Bros. issued a statement disclosing that the two would be battling one another in the new film. It quoted Snyder as saying, Let's face it, it's beyond mythological to have Superman and our new Batman facing off, since they are the greatest superheroes in the world.