The Flash movie was important for another reason besides potentially ending the DC Extended Universe. It also adapted the now iconic Flashpoint storyline that's considered easily the best story based around the Barry Allen Flash. Unfortunately, the movie had a bit of turbulence, and this suggests a harsh reminder of the reality of comic books.
Source：https://www.cbr.com/flash-flashpoint-all-dc-events-dont-need-film-adaptations/
