The long shot of the pyramids shows a "Serina" with no weapon on "her" hip and only hair half way down the back but the close-ups with Jane Seymour shows "Serina" with her hair down to her waist and a laser holstered on her right thigh.
At Apollo and Serina's wedding, Flight Corporal Rigel leaves as a bridesmaid when the bridge crew is called to stations. This can be seen in the background of a close up shot on Commander Adama. Yet, in a later long shot of the bridesmaids, she is seen back in the line as one.
In the long shots of the pyramids and Abu Simbel, stand ins are clearly used.
When Adama, Apollo, and Serina are in the section of the tomb with the tomb robber, and the gate suddenly traps them, Serina screams, but her lips never move.
They follow the myth of a star at the end of the dark void where they find the planet of origin yet they came from the opposite direction so the star would be at the start of the void.