Part 3 of the Arrowverse crossover featured a Watchmen Easter egg. "Special thanks to Damon Lindelof for making this one happen," tweeted Arrowverse boss Marc Guggenheim. ALSO: Lucifer's Tom Ellis apologizes for "Crisis on Infinite Earths."
TOPICS: Crisis on Infinite Earths, The CW, Watchmen, Marc Guggenheim, Tom Ellis