Arrow appearance in the flash pilot
"In the Flash pilot, Barry comes to me," Amell told the site. "[it's a] little snippet in the Flash pilot where he and I share a scene together, it's in his pilot, but [filming] it felt like our show because he's coming to Starling City. That, to me, was one of the most rewarding things that I did as an actor because it was essentially the same crew that we used for our pilot, and it was two years later and it was the same director. It was like going back in time. [Flash and Arrow director] David Nutter asked me to be a part of the pilot and I will never say no to David Nutter."