Continuity mistake: In the scene where Baltar and the President are talking aboard Colonial 1, the tea pot changes from shot to shot. In one shot it points away from the President and in the next it points towards her. Neither of them picks it up to move it. (00:25:00)
Continuity mistake: After Starbuck's cover as the mechanic is blown, she reaches into her tool box and grabs some guns. She has her hat pulled down over her face, but a second later when she spins around, the hat disappears and is never seen again. (00:26:30)
Revealing mistake: When Billy lies dead in the morgue and the President fixes his hair while saying, "That's better." we can see Billy's throat move as he swallows.
Downloaded - S2-E18
Continuity mistake: As Sharon shouts at Six, she is holding a photo frame in her right hand, waving it about slightly. But the moment she is about to throw the frame, it's instantly in her left hand and she passes it into her right to throw it. (00:14:40)
Downloaded - S2-E18
Continuity mistake: When Sharon throws the picture frame at the wall and Six's face is cut, the camera angle quickly changes a few times showing Six alternately from the front and rear. But with each angle change, the location and position of her right hand is wildly different. Palm facing toward her face, then away from it, then closed fist with fingers near her cheek, then immediately arm down at her side, then back to fist at her cheek. (00:15:05)
Lay Down Your Burdens (1) - S2-E19
Continuity mistake: When the President is getting ready for her speech there is a pencil lying on the table in front of Adama. When it cuts to the President picking it up it has changed position on the table.
Continuity mistake: When Adama is trying to resign the President hands him a copy of the certificate she wants to present to him. The pen that was in the holder a few seconds ago has been removed to allow her to hand it to him without the pen in the way. (00:39:00)
Continuity mistake: In the scene where Apollo and Helo are boxing, Helo punches Apollo and this cause his head to bleed down his face. A few shots later the stream isn't as long.
Revealing mistake: When you see Chief Tyrol leaving the camp on the Algea planet, one of the shots where he wanders around before finding the temple of the five, you can see part of the suburbs of Kamloops in BC with cars driving on the road. (00:08:27)
He That Believeth in Me - S4-E1
Continuity mistake: When Starbuck returns in the season 3 finale, the side of her Viper has no nameplate on it. However, during the season 4 premiere, the nameplate with "Kara Thrace 'Starbuck'" has returned, though only a moment later.
He That Believeth in Me - S4-E1
Continuity mistake: In the season 3 finale, Anders has a very noticeable limp, especially seen when he's following the Chief to the hangar deck, However, in the season 4 premiere, even though the same day, he has no limp at all.
Other mistake: In the intro, when Tigh, Tory and Tyrol meet, Tigh is wearing Admiral's rank insignia of his uniform. His correct rank is Colonel.
Continuity mistake: Near the end of the 4th season episode "The Oath", Adama and Tigh choose to stay and fight rather than flee Galactica with Roslin. Apollo is not shown voicing any opposition to this. Yet in the next episode's opening, he is shown confronting his father, saying "No, Dad, you can't stay here". While this moment can be excused as having happened off-camera as the mutineers were shown approaching in the prior episode, it is the later show's narration which states "Previously on Battlestar Galactica" that is technically incorrect.
Continuity mistake: In the medical area, the Doctor checks on Samuel while others look on. Sharon has both her arms down by her sides. The angle changes, just as he says "lot of visitors", and Sharon's suddenly clasping her hands together.
Revealing mistake: Just after Tigh announces that Centurions will be "pouring in at platoon strength", the next shot shows those Centurions marching though the Galactica's halls. None of them are casting shadows despite the various nearby light sources that should be causing such shadows. This is most obvious looking at their feet.
Plot hole: During the last Galactica jump, Kara enters different coordinates that she puts together in her head from her memories. There is no explanation as to how the fleet came up with those coordinates instead of the rendezvous coordinates. If the fleet had them as the rendezvous coordinates, Kara wouldn't have said "I don't have the rendezvous coordinates!" Right before the Galactica jump. Bill Adama also wouldn't have said in response "It doesn't matter! Just jump is out of here..." (00:05:54)
Suggested correction: In the flashback, Kara said "I thought that, if I assigned numbers to the notes." Those were the numbers she used for the notes to "All Along the Watchtower." She remembered them and used those for the coordinates.
