Hey you! Yeah, you! What are you doing in 2019? Well, cancel all your plans, because there's a new Batman movie coming out. What's it called, you ask? Um, it's called The Batman. That'sBatman, not like all those other Batmen. Never mind helium and coal: are we as a species running out of potential titles for Batman movies? I investigate.As it stands, we've had eight live-action Batman movies to date, with the ninth - Batman v Superman: Dawn Of Justice - due in 2016.