In the last chase scene, where they are going backwards through the streets, when they pass through the busy highway, you can clearly see someone waving at the camera in one of the cars on the highway. Kinda neat!
If this concerns the people sticking their arms out of their windows and waving, I don't think it's a slip-up. They are probably meant to be signalling the chasing cars (since these are driving on the wrong side of the road), just like other cars in this scene are flashing their head lights.
In the DVD version of Ronin, the director states that they used a very large number of professional stunt drivers for the chase scenes. In no way would a production company endanger the lives of civilian motorists for a scene like that. Instead, I believe that the stunt motorists are showing disapproval of the actors' paths in the streets.
![[Slipups.com Logo]](/images/slipupslogo_small.gif)
