According to Variety, Krypto the Superdog will join Superman's cousin in her first live-action film since the 1984 Helen Slater-starring Supergirl movie, which was panned by fans and critics alike.

Supergirl has appeared on the big screen twice before. First in the 1984 film Supergirl, played by Helen Slater, and then in last year’s The Flash, played by Sasha Calle. Of course, Melissa ...