Look up! With CinemaCon in full swing and DC Studios head honcho James Gunn mere months away from bringing his new-look DCU to the big screen with the hotly anticipated release of Superman, excitement — and nerves — are building as fans wait with baited breath to see if David Corenswet’s Kal-El has the Krypton factor or not. The first teaser for the Man of Steel’s cinematic comeback certainly held a lot of promise, offering tantalising glimpses at Rachel Brosnahan’s Lois Lane, Nicholas Hoult’s Lex Luthor, Nathan Fillion’s Guy Gardner, kaiju-sized monsters, and — perhaps most importantly — Krypto The Superdog, the goodest boy on this or indeed any other planet. And it’s…