- Doing It for the Art: According to David Leitch, Charlize Theron spent three months of intensive training in firearms and stunts in order to perform as many of the film's stunts herself as possible. This, in a way, is another echo of John Wick in the film's production; Keanu Reeves put himself through similarly intensive training to perform the stunts of that film himself. Charlize's training coincided with Keanu's training for John Wick: Chapter 2, since they both used the same stunt teams. Having been good friends from past roles, they got into friendly competitions and even sparred together on occasion.
- Fake Brit: The South African-American Charlize Theron plays the British Lorraine Broughton. Subverted in that it turns out Lorraine is actually an American agent posing as a British agent, making it a case of In-Universe Fake Brit.
- Fan Nickname:
- "Jane Wick", both for Lorraine and the film itself, as this film and John Wick feature a highly effective and pragmatic assassin as the protagonist, revolve around secret societies, and have long action scenes that avert such tropes like Shaky Cam and Bottomless Magazines. This is helped along by the fact that this film's director, David Leitch, co-directed John Wick.
- "Jane Bond" is also becoming a popular descriptor for the movie and the character after the film's release since its story, setting, protagonist and romance have more in common with him than with the more action-heavy, plot-light John Wick films.
- No Stunt Double: Charlize Theron did her fights' stunts herself, and broke two of her teeth doing so.
- Playing Against Type: Sofia Boutella has been typecast as efficient, confident Action Girls since her Star-Making Role in Kingsman: The Secret Service. Here she plays the decidedly actionless and emotionally fragile Delphine.
- Production Posse: Much of the crew from the first John Wick film show up here along with director David Leitch: Cinematographer Jonathan Sela, composer Tyler Bates, editor Elísabet Ronaldsdóttir and actor Daniel Bernhardt (the blond KGB agent who fights Lorraine during The Oner in the abandoned building) who previously played Kirill. The stunt work is done by 87Eleven Studios, the stunt house/production company run by David Leitch and Chad Stahelski, the directors of John Wick.
- What Could Have Been:
- The film's aversion of Beauty Is Never Tarnished was originally going to go much further than what appeared in the final cut. Word of God states that early injury makeup tests for Lorraine had her so badly beaten that the whites of her eyes were no longer visible (though whether that was intended to be due to swelling or bleeding inside her eyes is unknown).
- The film was originally going to include shorter cuts and less elaborate choreography in the fight scenes. Luckily, Charlize Theron proved quite adept at performing her own stunts and fight scenes, so the scenes were made into much more elaborate, longer action sequences (such as the stairwell fight.)
- David Bowie was approached to play one of the interrogators in the framing story, but respectfully declined. This ended up being fortunate, with his death partway through filming (which was possibly even the reason he turned it down, being well aware his days were numbered and not wanting to stick them with that situation).
Trivia / Atomic Blonde