THE FLASH's initial appearance in this weekend's BATMAN V SUPERMAN: DAWN OF JUSTICE has garnered a mixed response. Some got it right away and thought it was an ingenious way to introduce the character, others were left wondering what they'd just seen. Regardless, it's a moment that stands out in the minds of most of the people who saw the DC film.
Collider had a chance to ask producer Deborah Snyder about that brief glimpse of Ezra Miller's The Flash, and asked her how it came about. The interviewer phrased the question in the form of a comparison to AMC's TV series BREAKING BAD. That show was known for showing a flash-forward sequence that the creative team would then work to build towards as the season progressed. So they asked Snyder if Flash's appearance, and the subsequent warning he issues Bruce Wayne, was planned from the beginning.
"This was kind of the opposite [of Breaking Bad] because we had the script and it wasn’t in the script. As we started then we worked on our script, I think we were in the middle of shooting and we started working on the outline for the next movie and where they go, and Zack [Snyder] said, ‘Oh my God let’s add this moment that is gonna pay off down the road, and we’ll find out more information.’”
So it looks like we will, indeed, get to learn more about that situation in the films to come- even if it was more of a spur of the moment decision by Snyder to sneak it in.