Cosplay started in 1984, Nobuyuki Takahashi, founder of Studio Hard, attended the 42nd Worldcon in Los Angeles. He was impressed with the masquerade and reported on it in My Anime, coining the term kosupure (from which cosplay is derived) in the process. CCosplay  In both of Superman and Batman’s early appearances, they lacked the moral code they have today. Superman Costume   On many occasions, Superman came more alien than human.But most of the information acquired about Keaton's involvement comes from Muschietti himself, as Keaton has stated, "If I talk about [Batman], I'll just be bullsh-tting you.There is no detailed news as to the story line of either iterations of the character or how or if they will interact with one another in The Flash.