Continuity mistake: When Senator Palmer is binding his tie in front of the mirror, he pulls the broad part of it completely through the loop of the tie around his neck. Than it cuts to a close-up and the broad part's part-way through the loop again. (00:30:05)
Continuity mistake: When Jack stops at the bus station to get a bag, we see a shot of Jack's car from the point of view of the guy who has the bag. You can see a quite big camera inside the car on the left side. When we see the reverse shot from inside of the car, the camera is gone. (00:05:55)
Continuity mistake: In the 08:00 - 09:00 episode on DVD (and during the previous few hours) you see Kim Bauer's feet and she is wearing sandals with no socks. At 08:36 when Terri has just been taken from the room where they are being held captive you see a shot of Kim sitting down and you can see that she is wearing pink leather slipper style shoes and black socks.
Continuity mistake: When Kim waits as Teri is getting raped, she changes shoes from one scene to the next. First she's wearing flats, then wedge sandals.
11:00 A.M.-12:00 Noon - S1-E12
Continuity mistake: Jack spits in Kevin's face to clear some of the blood. Between camera angles his face gets a lot cleaner instantly. (00:07:50)
11:00 A.M.-12:00 Noon - S1-E12
Continuity mistake: Mike Novick and Senator Palmer are outside the car at Dr Ferragamo's office building when his office explodes. As they get back in the car, you can see over the shoulder of whichever gets into the rear, passenger-side. There is no one in the driver's seat, but when Palmer says, "Let's go," the car moves off immediately. (00:30:25)
11:00 A.M.-12:00 Noon - S1-E12
Continuity mistake: In the shot near the end where you see Jack's family running away from the van, Kim is wearing sneakers. But until now, making abstraction of the other continuity error a few episodes earlier, she was wearing sandals. It can be seen in another scene afterward. (00:39:40)
11:00 A.M.-12:00 Noon - S1-E12
Continuity mistake: When fleeing from the compound, Kim wears running shoes instead of the wedge sandals (or the flats she wore when Teri was raped).
Continuity mistake: When the CTU units arrive with the helicopter, they ask Teri to drop the weapon. She puts down the weapon, than it is a cut to a view from behind Teri and she still has the weapon in her hand, but is starting bend to put the weapon down.
Continuity mistake: In the scene where the CTU tactical team arrives at the 'lz', the chopper that first makes ground contact is marked "CTU-1", and offloads six federal agents in full tactical gear. Later in another shot of the same scene, you see "CTU-1" marked on a second chopper still circling in the air. It's clear this is not the same chopper as before, as we see the first "CTU-1" on the ground again moments later.
Continuity mistake: At one point during Alberta Green's debrief of Jack, the shot changes to a split screen. In the left box, Jack stands up from the table before he does in the right box. (00:04:05)
Continuity mistake: When entering the safe-house Nina walks past the lit lamp on a side table. Seconds later when Mrs. Bauer walks past, it is switched off. (00:11:15)
Continuity mistake: In Episode 15 (Day 1), the pregnancy test that Teri takes to the bathroom is a "TrueBlue" (close up shot on it), but the one that Kim finds there is a "ClearBlue". (00:13:07 - 00:19:57)
Continuity mistake: Elizabeth walks away from the security brief and puts her arm on the wall. When David approaches her, her arm is still on the wall. When the camera changes to the front angle, her arm is not on the wall any more. This is an instant cut. (00:06:30)
Continuity mistake: When Keith Palmer and Carl Webb meet they stop walking around to talk. When we see Carl's face, the sun is coming from behind him, the light shimmers through his hair and the light reflects on Keith's face. Than it cuts to a view from behind Carl, and there is suddenly no light, both stand in the shadow. (00:34:00)
Continuity mistake: Tanya chucks her number and 10 bucks down on the table. These items then proceed to change place without being touched. (00:07:50)
Continuity mistake: As Elizabeth turns round to stab Drazen, he already has a blood mark on his shirt before being stabbed. (00:35:00)
Continuity mistake: We see Teri asleep with her head leaning back. Camera changes and now her head is leaning forward. (00:38:30)
Continuity mistake: When Reed walks into the room for the telecast rehearsal, and heads toward the podium, the woman with the blonde ponytail stands both at the podium and behind him in these shots.
Continuity mistake: When Tony and Mason are having words about things being personal, there is one point where Mason approaches Tony and Tony's arms go from on his hips to down by his side instantly. (00:13:10)