Arrowverse showrunner Marc Guggenheim discusses why we didn't see confirmation of Smallville's survival at the end of Crisis on Infinite…
Arrowverse architect Marc Guggenheim has answered questions about Michael Rosenbaum and Erica Durance's Smallville roles in Crisis on Infinite Earths.
Marc Guggenheim discusses Tom Welling's reaction to being pitched his scene for Crisis on Infinite Earths.