Continuity mistake: When Gatou Vardebedian is holding Gus Cardinale at gunpoint, the gun keeps changing position between shots (under his throat, by his nose...) and she is holding it straight or turned sideways. (00:13:00)
Other mistake: Tough beat cop Farley Wood in his spare time built a special electronic machine to feed his cat. He needs to take off for Miami at 3 PM. When his cat is eating before his departure though, the clock on the machine says it's "12 AM", which would be midnight, not noon.