Visible crew/equipment: The Angels are being stalked by a hired killer. He tries to shot Jill in the boys' locker room where shes teaching basketball. He shoots at her and hits a fire extinguisher. You can see the "plug" for the charge on the extinguisher before he shoots and hits it.
Continuity mistake: Jill and Kelly hijack a cab to stop the killer from bombing Charlie's cab. On the way back to the mansion they pass Charlie's cab and almost run into a large truck. They miss the truck, but Charlie's cab hits it head on, doing some serious damage to the cab's front end. After they stop the killer, Charlie's cab arrives and now has no damage.