Continuity mistake: Derek drives in to talk to Owen. He gets out of his Porsche Cayenne and closes the driver's door. In the next shot you see the door open in the background.
Continuity mistake: When Hunt and Warren are in the elevator, Warren is wearing normal clothes. When the storm into the O.R. Warren is suddenly wearing scrubs. There is no way he could have changed into scrubs fast enough to get to the room before they started cutting the bars off the guy on the table.
