Batgirl Test Screenings Scored Similarly to Shazam! 2 - ComingSoon.net
It’s mentioned that despite the general interest in Batgirl (which was set to feature the first Latina to star in a DC Extended Universe film), the actual film itself was not being received well in tests.An early version of Batgirl was test screened with temporary VFX and score and received a score in the low 60s in its one and only test.
Even though the film received modest scores, low test scores are not always indicative that a film will be a total failure, as plenty have gone on to score big at the box office despite them!