Trivia / The Flash 2014 S 9 E 9 Its My Party And Ill Die If I Want To

• Ascended Fan Nickname: The interconnected nature of this show with its siblings was never actually called the "Arrowverse" by the people in charge. Instead, it was dubbed the "CWverse," due to Arrow ending and the introduction of shows like Stargirl (2020) and Superman & Lois that are only loosely connected to the Earth-Prime shows due to taking place on different Earths of the multiverse. However, the promotional trailer for this episode outright used the term "Arrowverse" to describe the team-up, rather than "CWverse."
• Awesome, Dear Boy: Initially, Stephen Amell was understandably hesitant about returning as Oliver Queen one more time. The character had, after all, already had his sendoff 3 years earlier and he didn't want it to be a stunt appearance that would detract from the ending of Grant Gustin's show and overshadow its cast. However, once Greg Berlanti and Eric Wallace walked him through the pitch — that the focus would instead be on honoring the Oliver/Barry relationship one last time — Amell was on board. He especially enjoyed Oliver and Barry's final scene together and getting to bookend his appearance and dialogue in the Flash Pilot 9 years earlier.