Continuity mistake: After buying an egg sandwich, it focuses on the fact she is wearing one flat shoe and one heeled boot. She is then chased by the police and is wearing two flat shoes from then on.
Suggested correction: When getting the sandwich, she has socks on, and a shoe on one foot. She must kick the shoe offfscreen, and is then just running in her socks.
Continuity mistake: In the scene with the sprinklers in the prison Harley gets soaked. She walks into a different room and suddenly she's completely dry.
Suggested correction: She's actually completely wet in another room, she just dries too fast in the process of fighting.