All of them. But definitely Suicide Squad first.
As long as JL/GL has John Stewart. Don't care about comics, those who only watched DCAU only know him.
Dafuq the rock as shazam!?!?!? Shazam is 10yo boyboy wat, the rock soo bulky
TV and movie universe is separateA different actor playing flash?
Martian Manhunter not part of the Justice League in the DC Movie universeWhy got Aquaman but no martian manhunter standalone movie?
John Stewart isn't even the original or the most popular GL.
There are 5 human GL's
Adam Smith (Golden Age GL)
Hal Jordan
John Stewart
Guy Gardner
Kyle Rayner
I think most likely GL will be Hal Jordan
But how many read the comics, and how many watched the Justice League cartoon?