The Flash featurette introduces Sasha Calle as Supergirl

Upcoming DC movie The Flash comes at a pivotal juncture in the DC Extended Universe, which is set to be rebooted as the DC Universe by James Gunn and Peter Safran.

Without spoiling anything, the quicksilver abilities of the eponymous Barry Allen (Ezra Miller) are set to implode the possibilities of the franchise's timeline, allowing the nostalgic return of Michael Keaton's Batman, for one.

By breaking apart space and time, Barry also facilitates the arrival of Kara Zor-El aka Supergirl aka Superman's cousin, played by Sasha Calle. Go behind the scenes with Calle in the following video and discover how she's an important addition to the tapestry of action in The Flash.