Factual error: When "some Frida Kahlo-looking asshole" is chasing Harley across the bridge during her close-up you can see that the cartridges are loaded backwards into the cylinder. (00:54:05)
Birds of Prey (2020)
1 factual error - chronological order
Directed by: Cathy Yan
Starring: Ewan McGregor, Margot Robbie, Mary Elizabeth Winstead, Jurnee Smollett-Bell
Continuity mistake: A pile of drugs gets blasted up with powder flying everywhere yet there's none on the ground seconds later.
Harley Quinn: I'm the one they should be scared of! Not you, not Mr J! Because I'm Harley Freaking Quinn.
Trivia: At the police station the pic of the guy on the wall who Harley says "I know that guy" is Captain Boomerang from Suicide Squad, the previous film.
Answer: She collapses after her single usage, so it is something she can use only sparingly - in this movie at least.
Sammo ★