When Blondie is talking to Danny at his apartment, she is reclining on the sofa with her legs stretched out straight. But on the next immediate cut when Danny confronts her; she is now sitting up with her legs in a folded position.
When the two gangsters first approach two little girls sitting on the stoop; the youngest girl has her legs crossed. But on the following shot, she now has her legs uncrossed. Then on the immediate shot after that, she has them crossed again.