Milly Alcock in 'Supergirl.' Courtesy of Warner Bros. Pictures Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Logo text Milly Alcock's Kara Zor-El is on a mission to save her superpup, Krypto. On Tuesday, DC Studios released a new trailer for Supergirl, the upcoming film with Alcock in the leading role after making a cameo in last year's Superman.