Revealing mistake: Starbuck is romancing both Cassie and Athena in different rooms aboard the Rising Star. Odd that both rooms have the same wrinkle and tear in the wallpaper just under the window. There's also, in both rooms, what looks like a black thumbtack repairing the glitch. (00:08:25)
Revealing mistake: When Robber starts shooting at Apollo and Boomer, it's comically obvious that the two warriors have been replaced by stunt doubles that bear almost no resemblance to the actors- most notably as they run for cover. (00:32:55)
Revealing mistake: When Apollo fires at Robber, his shot hits a pillar, knocking a chunk of it off. As he runs behind the pillar, a circular device dangles from a wire in the damaged part of the pillar- the remnants of the effects charge that was used to cause the damage. (00:33:45)
The Gun on Ice Planet Zero (1) - S1-E8
Revealing mistake: When the 'snow ram' loses power and stops, the crew jumps out to see what has happened. The snow surface behind the ram is undisturbed and trackless, as if the ram has been stationary long enough for its tracks to be erased. This is because it is actually on a set and has not moved at all. (00:34:00)
The Gun on Ice Planet Zero (1) - S1-E8
Plot hole: The borrowed (oh, all right, ripped off) plot of "The Guns of Navarone" does not translate well here. The premise, that the rag-tag fleet must pass through the "narrow corridor" guarded by the pulsar gun, is ludicrous. We're in outer space here. Outer space is very, very big. We can fly around one lousy little planet, no matter how many Cylons are "herding us" toward it.
The Gun on Ice Planet Zero (2) - S1-E9
Revealing mistake: During the second wave of the Cylon attack, Galactica is shown from her port side, and her name is missing from the side of the landing pod. (00:26:10)
The Gun on Ice Planet Zero (2) - S1-E9
Revealing mistake: When Adama orders the fleet to "Flank speed ahead", the next exterior shows Galactica, seemingly turning to port, but looking at the landing pod shows the image is a reversed shot of the ship turning to starboard, evidenced by the ship's name being backwards. (00:27:10)
The Gun on Ice Planet Zero (2) - S1-E9
Revealing mistake: After an avalanche, Apollo gets off a guy he has sheltered. Around them, in the fake snow, are several chunks of ice or snow. As Apollo moves forward, note how they move less like snow, and just like the Styrofoam that they actually are. (00:29:25)
The Gun on Ice Planet Zero (2) - S1-E9
Audio problem: On their way across the mountain toward the pulsar station, Wolfe draws his gun. Apollo says "The Galactica is the only ship in the galaxy that can protect you", then he pauses for a second. Right before the shot cuts, his mouth continues moving but no voice is heard. (00:30:05)
The Gun on Ice Planet Zero (2) - S1-E9
Continuity mistake: When they plant explosive charges on the pulsar weapon, Apollo, Croft and Lida are wearing black utility shoulder belts over their snow parkas. All three belts disappear in the very next shot. (00:38:35)
The Magnificent Warriors - S1-E10
Revealing mistake: Due to repeated film footage, Sectar's full moon rises on the second night with the exact same, very distinctively-shaped cloud bisecting it. (00:11:45 - 00:26:10)
Revealing mistake: In the opening scene, the canopy of Starbuck's viper is not fully lowered while in space flight, leaving a wide gap under its starboard side that would have allowed his air supply to be instantly sucked out into the vacuum of space. (00:02:50)
Continuity mistake: When Boomer tells Starbuck to check his scanner, it shows three Cylon ships approaching. In the next shot, four Cylon ships attack, not three. (00:03:30)
Revealing mistake: As Starbuck's rescuers arrive, they are riding unicorns. The second from the right is bobbing its head energetically enough that the sheepskin cap it's wearing is bouncing loosely, along with its fake horn. (00:11:45)
Plot hole: After crashing on the planet, Starbuck's pants are shown torn open on his right thigh which is bleeding significantly. The child warriors find him and bandage his wound. When Boomer and Apollo arrive to pick up Starbuck, they give him a clean uniform. In the next scene, he is in that uniform, but his injured leg is wrapped in bloody bandages over the new pant leg. It seems unlikely he'd put the fresh pants on, then bandages. (00:44:40)
Audio problem: As Starbuck says goodbye to Megan, the shot from behind Megan shows his cheek and chin are moving very differently than the words he is speaking would require. (00:45:25)
The Living Legend (1) - S1-E12
Plot hole: Galactica's sensors detect a second Battlestar, Pegasus- a shock to everyone aboard. Then its commander, Cain, speaks with Adama via video hookup, and announces that he'll be arriving at Galactica momentarily. Yet he arrives in a Galactica shuttle, marked "GAL 356", which hasn't been sent to go get him since they only just now discovered Pegasus exists. Even worse, this is the same shuttle destroyed several episodes ago when it crashed on Ice Planet Zero. (00:10:55)
The Living Legend (1) - S1-E12
Continuity mistake: After Cain leaves the planning session for the attack on the Cylon convoy, Apollo walks toward Adama. In the background is a metal wall unit. At the far right side, halfway down are four small compartments with handles that are all properly folded flush. When the shot cuts to a close-up of Tigh, the second compartment's handle is not stowed. (00:24:55)
The Living Legend (1) - S1-E12
Other mistake: When Apollo confronts Sheba, he says "Well, then we have found a weakness or two, haven't we, Lieutenant?" but the DVD subtitles say "witness or two" which makes no sense in context. (00:32:50)
The Living Legend (1) - S1-E12
Visible crew/equipment: Near the end of Part 1, when Lucifer reports to Baltar that they've located the scout vessels, there's a fuzzy reflection on the back wall of some sort of equipment moving upward and to the left. Nothing in the scene itself is moving that way.