Trivia: When Barry and Oliver are fighting on the street, a police officer asks for backup and mentions Burton and Nolan street, as reference to Christopher Nolan and Tim Burton.
Trivia: Although Laurel is a couple of years older than Sara, Katie Cassidy is only about a month older than Caity Lotz.
Trivia: In season 2 flashback scenes, The Butcher is played by Ron Selmour. Selmour played Marcos in the series "Smallville." Marcos was on the island with Oliver Queen and captured him, with plans to ransom him.
Crisis on Infinite Earths: Part Four - S8-E8
Trivia: When Barry/Flash is in the Speed Force, he meets another Barry/Flash. This other Flash is played by Ezra Miller who plays Flash in the 2017 film "Justice League."
Trivia: While Nora is looking the ice gun the mask of Bane from The Dark Knight Rises can be seen.
Trivia: Batwoman lands on the van in in a similar way to Batman in The Dark Knight.
Trivia: The black suit wore by Superman is the same seen in The Return of Superman comic book.
Chosen answer: "C'mon Doll" by My Goodness.
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