Buddy is giving Jay a shave. He shaves the right then the left. In the next shot when Buddy wipes off Jay's face, the shaving cream is back on the left side of his face.
When Rena lies in the pool with the noose around her neck, the rope is floating towards her feet. In the next shot, it's above her head.
When Rena tries to slit her wrist with a plastic spork, she alternates between using her left and right hands in every shot.
When Barbie is in the bathroom crying, the audio and visual don't match.
When Rena and Barbie have the heart-to-heart talk on the steps at the prison and Rena gets up and offer's Barbie a hand, you can see her mic clipped onto the back of her waist.