Continuity mistake: As Theo is sitting down at his desk, the camera comes up from behind the woman across from him, who has small knick knacks and figurines covering her desk. The shot zooms in on Theo and then switches to the crying woman. When the shot changes, notice the "fat-baby" figurine suddenly switches with two-smaller animal figurines. It's hard to tell what they are, but it's easy to see they've been switched with the baby.
Visible crew/equipment: After the roadside ambush scene, when the police pull the car over, Luke says "I can't outrun them" and the camera follows Theo looking out the back window. In this shot you can see the top of the head of a crew member wearing headphones crouched down in the small boot space behind Theo's chair. Also, after Luke shoots the two policemen, just before Theo gets out the car you can see a piece of the elaborate camera rig sticking out over the top of the car, above Theo's door. (00:29:40)
Continuity mistake: When the windscreen is shot at, it begins to crack across, showing it's laminated as you'd expect, then in the next shot it shatters as though it is toughened glass. Laminated glass doesn't shatter into hundreds of pieces.
Continuity mistake: When the man leaves the greyhound track and runs for the bus, that type of bus is an old metrobus, but the inside of the bus he jumps on at the time is a brand new (at the time) Dennis president bus.