However, this background change also calls into question specifically how Barry Allen gained super speed in the DC film universe.
If Ezra Miller’s Barry doesn’t have a lab at the CCPD, then where did his accident occur?
My guess is that the location was simply moved to a lab at the Central City College campus, and everything else played out similarly as it did in the comics.
Following his recovery period (if he even needed one) and some time messing around with his new “talents,” Barry decided to stop criminals as The Flash, eventually catching the attention of Bruce Wayne, who saw a future version of Barry during Batman v Superman: Dawn of Justice.