Audio/visual unsynchronized: During the Tango contest scene, Paul's clapping doesn't match the soundtrack.
Continuity: When Paul and Jeanne get out the apartment the door remains a little open. In the subsequent shot, when she steps down the staircase, the door is completely closed.
Continuity: After the scene in which he uses the butter, Paul rests alone on the floor on his left side. Next shot he appears on his back.
Revealing mistakes: At her wake, Rose blinks when Paul leans in to clean her face.
Audio/visual unsynchronized: When Paul and Jeanne are at the sinks together, she says, "I prefer to be a whore." Her lips do not move during that line.