‘Arrow’ season 4, ‘The Flash’ season 2 face huge hurdles for potential ‘Supergirl’ crossover
It seems to be almost a recurring theme at this point anytime that producers for the “Arrow” / “Flash” universe are in front of reporters: Questions aplenty are asked about the notion of a spin-off featuring one of these shows and “Supergirl” on CBS. They all share executive producers Greg Berlanti and Andrew Kreisberg, and […]