How complicated is a 4-way DC crossover — Supergirl, Arrow, The Flash and Legends of Tomorrow? Very. Just look at this Flash slate with Arrow added.
What triggers this year’s 4-way crossover? Barry Allen and Iris West’s wedding.
Who’s in it: Oliver Queen, the Green Arrow (Stephen Amell); Barry Allen, the Flash (Grant Gustin); Kara Danvers, Supergirl (Melissa Benoist); Sara Lance, the White Canary (Caity Lotz); Ray Palmer, the ATOM (Brandon Routh); Iris West (Candice Patton), Cisco Ramon, Vibe (Carlos Valdes); Caitlin Snow, Killer Frost (Danielle Panabaker); Dinah Drake, the Black Canary (Juliana Harkavy); Mister Terrific (Echo Kellum); Wild Dog (Rick Gonzalez), Mick Rory, Heatwave (Dominic Purcell); Firestone (Franz Drameh), Vixen (Maisie Richardson-Sellers), Zari (Tala Ashe) and gay superhero The Ray (Russell Tovey) from Earth 10.
Who’s crashing: villains of Earth-X which include evil The Flash, Green Arrow and Supergirl doppelgangers.
The Flash began production on its crossover episode last Friday. And set up at Burnaby’s Former Youth Detention Centre earlier this week. There are jail cells but production likely chose the site for its outdoor privacy not far from The Flash and Arrow studios.
I drove by today and spotted Stephen Amell’s airstream in among The Flash trailers. And Amell later tweeted this photo from the grass.
Crossover. Day 9. I showed up like this. What of it? 🤘🏻 pic.twitter.com/8fKRG8wSCF
— Stephen Amell (@StephenAmell) September 29, 2017
(After filming overnight, Amell flew to Alberta in the morning on no sleep).
Likely Legends of Tomorrow’s Caity Lotz has spent a night or two filming there too.
Night shoooting until the sun comes up. Let’s keep the moon awake pic.twitter.com/vEZ1hFB6sG
— Caity Lotz (@caitylotz) September 28, 2017
And maybe Supergirl’s Melissa Benoist?
Supergirl is doing its own overnight shoot tonight in downtown Vancouver on the roof of 1133 Melville St. and inside but it’s possible Benoist will go back and forth.
Will she look as glam at the end of the night as she did in the laneway this afternoon?
@WhatsFilming @yvrshoots A few Melissa shots from today #Supergirl pic.twitter.com/tq2ZYk8o35
— Frog Photography (@FrogPhoto) September 29, 2017
The crossover airs November 27th and 28th on The CW.