Update – November 14: We've been given another teasing look at Arrowverse's upcoming Elseworlds crossover, and this time it's The Flash's Barry Allen who's getting confused.
Caught in the middle of a sparring session with Diggle (David Ramsey), Barry soon realises that he can fight with all the skill of a certain other superhero.
"I'm the Green Arrow," he realises, prompting Diggle to reply: "Yeah, I'll say."
Original – November 13: Arrowverse's new Elseworlds crossover has a brand new trailer, which sees Oliver Queen embrace The Flash's Iris.
In the clip, Arrow finds himself identity-swapped in Barry Allen's shoes as Iris kisses him and calls him Barry, not realising that this isn't her actual other half.
Things have truly turned upside down in this universe.
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It comes days after we got our first look at Superman and Lois Lane in Tyler Hoechlin and Elizabeth Tulloch respectively.
As well as introducing the iconic pair into the Arrowverse, the crossover will also bring in Ruby Rose's Batgirl and Bob Frazer's Psycho-Pirate. Gotham City and Arkham Asylum will also be introduced for the first time.
The event will see Supergirl (Melissa Benoist) seek out her cousin Superman and Lois alongside identity-swapped versions of The Flash and the Green Arrow as she investigates a series of disturbing reports about Arkham, which is being run by Dr. John Deegan (Jeremy Davies).
The new storyline will also bring in John Wesley Shipp as he reprises his role as Barry Allen from the original Flash TV series in the 1990s.
The crossover starts with The Flash on Sunday, December 9 at 8pm ET, followed by Arrow on Monday, December 10 at 8pm ET and Supergirl on Tuesday, December 11 at 8pm ET, all on The CW in the US. Sky One airs all three series in the UK.
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Sam is a freelance reporter and sub-editor who has a particular interest in movies, TV and music. After completing a journalism Masters at City University, London, Sam joined Digital Spy as a reporter, and has also freelanced for publications such as NME and Screen International. Sam, who also has a degree in Film, can wax lyrical about everything from Lord of the Rings to Love Is Blind, and is equally in his element crossing every 't' and dotting every 'i' as a sub-editor.
