"Marc Guggenheim this year actually took over for the crossovers and basically wrote all three scripts, which I thought was a fantastic idea, because it gave one person the chance on building the throughline, because, you know, the first hour is Flash and the second hour is Arrow and the third hour is Supergirl, but that's in names - name only. It might as well be Elseworlds, Hour 1, 2 and 3, because the crossover starts - just because it starts on the Flash doesn't mean it starts in Central City - although I think it does. I did, however, pitch, and it ended up in the script, the very first scene that you are going to see in the crossover, which is really funny. It's really, really funny."