The Flash has nose dived at the box office. People are not happy with the computer aided effects and rumor is there is a fuck ton of weird and unnecessary cameos.
Ben Kingsley shows up as "Apache Chief". He is a wise and powerful native that can turn big but can't turn seats in a theater it seems.
The original Don Knotts joker. He is dead so this was probably all CGI unless they dug him up and put a makeup girl to work on him.
Rosie O'donell showed up as Harley Quinn but Chris Odonell was nowhere to be seen.
Carrot top joker was a miss with audiences back in the day and it seems time hasnt helped things. He cycled through five props in a two minute scene
Richard Simmons Hulk was totally unexpected but since his color wouldn't work with a green screen they tried a new approach
Choosing a Superman from the CW was the kiss of death.
Trans Reagan as President was a brave choice but it seems audiences may not have been ready.
Is this the end of multiverse style films? Probably not.
As long as there are bad ideas and computers to work on them we will keep getting what we deserve