Originally Posted by BatLobsterRises
Makes no sense if it's a cameo, because Flash voiceover would be totally out of left field and inappropriate.
I think it's TV related and El's source got fooled into thinking it was movie related.
This would make the most sense. No one is going to bring the Batman vs. Superman script to a NYCC party on a USB flash drive and say "who wants to check this out and take screenshots?!"
And if this was as big as he thinks it is... why would he post it to Instagram instead of his website? It just doesn't make any sense