Continuity mistake: When Connie goes to the back to meet Paul in the coffee shop, there is a shopping bag in the chair next to Sally. The shot goes between her and the other two ladies talking. When the ladies at the table are taking about her getting work, there is nothing in the chair beside Sally. When the shot goes back to Connie coming back to sit down, the shopping bag is back in the chair.
Continuity mistake: In the scene at Cafe Noir, Constance goes to the restroom to meet Paul. She does not take her purse with her - her hands are empty. However, when she returns from making love in the restroom with Paul, she is carrying her purse.
Continuity mistake: In one of the opening scenes, when Constance first is at Paul's apartment, she puts two bandages on her scraped knee--both horizontal across her knee. In a later scene, that same day at her home, as she shows her son her knee, one of the bandages is bigger and also is off to the side of her knee, at an angle. The cuts on her knee change throughout the film. For example, when Constance is in the tub, suddenly she has a cut on the other knee, as well. And when she's on the train, in a later scene, daydreaming about Paul, the cuts don't seem even remotely healed, despite the fact that some time has passed.
Continuity mistake: In the scene where Constance is in the kitchen with her son, he points out that the two pans are boiling over. A quick shot of the pans confirms this and Constance quickly takes one off the heat. A shot back and the remaining pan is not boiling over, a shot back again reveals that is suddenly boiling again.
Continuity mistake: When Paul draws the flower on Connie's skin, it is different from the one that she wipes off in the tub. Also, if you notice, when she is in the tub, the water level doesn't rise when Edward joins her in the tub as it should. Then when she leaves, the water level also stays the same for Edward.
Continuity mistake: At the start Ed has a blue shirt on. He leaves the house with his son - when he turns to wave goodbye the shirt has turned grey.