Deliberate mistake: When the investigators are in the basement wine cellar, they turn on their flashlights to illuminate the pitch black area as they walk around. However there is a light source moving with the camera shining on them as they are casting a shadow behind them.
Continuity mistake: Lisbon and Jane enter the interrogation room to interview the wife of the murder victim. As Lisbon sits down she opens her notepad upside down. Next shot of her the notepad is right side up. Remaining shots of Lisbon shows the notepad upside down again.