The theatrical release of Black Panther gets off to a strong start, with the Marvel movie setting the opening day box office record in the UK for 2018 so far. A Black Panther film has been a long time coming, with a cinematic feature on the titular character being held back and delayed for a multitude of reasons over the years. With that in mind, predictions have been running high for the film’s box office success, and so far that is proving to be accurate.