Just before the time bomb explodes, an Asian woman runs past the same bus and bystander twice.
When Zach is talking on his car phone, he passes the same two houses twice within seconds of each other during his phone conversation.
When Tibbs chases the "thugs" into the subway, he's being shot at. When he dives away behind some oil barrels, the trolley on which the camera is mounted shows up for a second or so.
Joe Peralez is seen in the hospital after being hit by a car. His head is bandaged. The man escorting him in the hallway of the hospital says he's been sedated. Patients with closed head injuries are never given sedation of any kind. Sedation or pain medication would mask symptoms of a worsening head injury. It's not really clear what the sedation angle adds to the story.