‘Supergirl’ Preview Numbers Show the DCU’s Second Film Is No ‘Superman’

The DC Universe arrived in theaters just over a year ago on the back of enormous momentum, with James Gunn’s ‘Superman’ winning over critics and casual audiences alike. The task of sustaining that goodwill now falls to ‘Supergirl,’ the second installment in Gunn and Peter Safran’s rebooted franchise, directed by Craig Gillespie and written by...