When Selina talks to Scarface in the limousine, her eyebrows change from black to blond back to black again between shots.
When Catwoman is talking to Scarface the ventriloquist is using both hands to move Scareface's arms and yet Scareface's mouth continues move as he talks. Same when the ventriloquist is running with him. Both hands seen and mouth moves. And when Catwoman uses her whip around his neck his eyes closes them like he's wincing.