It seems all but confirmed that Darkseid will be the villain of the Justice League movie as a number of rumors have reported that as being so.
Who knows, maybe we'll see both, but regardless what is true or not, it actually might be a better idea for Warner Bros. to go with Starro than Darkseid.
Here are 5 reasons why.
5. WB can give us Civil War.
Think of Batman Vs. Superman on the big screen or Supes vs. Green Lantern etc. Throw Wonder Woman and The Flash into the mix in addition to a few cameos by the other members. We know Starro has mind-controlling abilities so we could see the Justice League battling it out against one another. Another plus for WB, is that it trumps Marvel's use of Mark Millar's popular Civil War Marvel Comics event that saw hero vs hero, much the same Whedon trumped WB's use of Darkseid with Thanos (see below). Heroes vs. Heroes would also have the military involved and keep up with the theme set in the Man of Steel i.e. govt vs hero.
4. No Thanos Clone
While true Thanos is actually the rip-off of Darkseid, movie goers are not going to see it that way as it's said that Thanos will be in The Avengers 2. And then what? A month later the Justice League is flying in space battling against minions and a Thanos clone much the same way the Avengers just did?
3. Eliminates the need for origins
You hear it everywhere: DC needs to do it like Marvel with all the build-up.
As Jim Romes best puts it "Eeeeehhh!" As we've stated previously, the Leaguers are more well known than the Avengers (were) and don't necessarily need all the build-up.
Regarding the use of Starro, you could have any number of heroes appear - and they wouldn't need an origin - because they could simply appear as being mind-controlled.
Remember, this is the Justice League we are talking about here.
2. It's still Cosmic
It's also rumored that the Justice League movie will feature Darkseid attempting to replace the Earth with his own planet of Apokolips, obviously hinting at a very space-based cosmic movie. Well, Starro is an alien as well - and the first threat the Justice League faced - so WB wouldn't need to go that far off the mark from Darkseid.
1. Easier To Spin-Off From
With the use of Starro's mind-control abilities, as we stated above, it's easy to really introduce anyone and not need an origin. If it went down this way, the character in question's origin could be then explained in his/her spin-off movie far easier. It actually might be more organic if a mind-controlled Aquaman comes out of the ocean with his army of sea creatures attempting to crush Superman, Batman and Green Lantern, than say if Aquaman comes to help against Darkseid and says, "Hey, guys. I'm Aquaman and I'm here to help."
This way would also be a better lead into the fight down the line against Darkseid as the heroes would have already teamed up against Starro, and would make sense to do so again.
Our only advice to WB regarding Starro is to give the look a bit of an update.