king arthur comic con poster featuring charlie hunnam excalibur king arthur comic con poster featuring charlie hunnam excalibur warner bros pictures has released the king arthur comic con poster from guy ritchie s revisionist take on arthurian lore check out the full king arthur legend of the sword poster in the gallery below featuring charlie hunnam s title hero along with his trusty excalibur hunnam will appear in person at saturday s warner bros presentation in hall h scheduled from 11 30am 1 30pm i think where the pitfall has often been is trying to make king arthur bland and nice and nice and bland director guy ritchie previously told ew the two qualities make rather compatible bed companions