Ah, That’s Why ‘Supergirl’ Turned Out How It Did GizmodoBehind the ‘Supergirl’ Bomb: Competing Cuts, Creative Differences (Exclusive) The Hollywood ReporterSupergirl is a box office catastrophe. How can Marvel and DC save the superhero movie? The GuardianWhy the ‘Supergirl’ movie provides us a cautionary tale | Opinion USA TodaySupergirl Reportedly Faced Creative Differences Between DC Studios and Craig Gillespie IGN