James Gunn confirms "Supergirl: Woman of Tomorrow" has started filming, shares first set photo of Milly Alcock

Thrilled to see cameras roll at Warner Bros. Studios Leavesden on Supergirl, with Craig Gillespie at the helm and the phenomenal Milly Alcock as our Kara Zor-El. Craig brings an incredible sensibility to this story, and Milly is every inch the unique #Supergirl envisioned by Tom King, Bilquis Evely & Ana Nogueira.