Visible crew/equipment: When Nina's just been shot, and makes it to the barn to call CTU (around 7.10am), while she's speaking on the phone there's a cameraman visible on the right hand side (DVD). (00:12:40)
Revealing mistake: When Syd's Dad rescues her in the car park, he starts shooting at the other car. After firing one shot the slide of his gun locks back (indicating it's out of bullets), but when the angle changes he carries on firing with no problems. (00:43:20)
Episode XXIX - Couple on a Train - S3-E3
Continuity mistake: On the train, Josephine walks past Jack when he's given his cup of tea. In this shot of Josephine, her facial beauty mark is on her left cheek, but in previous and following shots her beauty mark is on her right cheek. (00:07:35)