Milly Alcock takes flight in 'Supergirl' trailer - WATCH

Milly Alcock's Supergirl takes center stage in the first full trailer for the upcoming DC Studios film. The trailer reveals a 'Guardians of the Galaxy'-esque galactic journey for justice and truth, hinting at emotional depth and the exploration of Kara's past. Fans also get a glimpse of Krypto the Superdog in this summer blockbuster.