Wasn't a fan of the musical part but I kept an open mind. Then I wasted 2 hours watching a musical court movie.
Gaga never turned Into "Harley quinn".
It seems like the directed wanted to show that this wasn't the real joker, he was just plain ass Arthur fleck. He was trying to show the sad part of mental illness. Then to kill him off at the end with a blurred out killer who appears to be the real joker....then no joker 3!! Todd Phillips knew the movie was so bad he killed the whole series himself...don't waste your time on this pile of crap.