Visible crew/equipment: Gretchen arrives at the pickup spot with the van with LJ inside of it. As she opens the back door the camera moves closer and the reflection of the crew in the glass is obvious. (00:08:30)
Other mistake: When the driver hits Sucre's car you can see a doll in the driver seat. And after the fight Gretchen gets in the car by herself and starts the car on the wrong side (the passenger seat), plus when she leaves the dead body disappears. (00:34:22)