A couple of early Eagle shots use camera angles from positions beyond the edge of the set. The Eagle cockpit shows the front side of the console, with a small hole full of wires. The passenger module shot shows the edge of the seats, which should be against the wall.
Helena's point-of-view in the Eagle module shows the caveman's hand and axe. The view from the side shows the caveman's head is on the walkway ledge. His head should be visible in the previous shot.
Koenig briefs the Alphans at his desk. When he stands to talk to Bergman, his arms are by his side (although the right arm is just out of frame). However, when it cuts to the view from behind Victor, Koenig's hand is on Victor's shoulder. Thanks to Mark Moss.
When Helena and her medics enter the Eagle, we see them heading forward, rather than to the seats. Actually they are putting their bags in the storage alcoves. This shot, only seen in the This Episode sequence, shows them moving back to their seats.
The position of the Eagles in the four landing shots are inconsistent. When Alan's Eagle lands next to Koenig's (middle picture), Koenig's Eagle has moved to the right (relative to the hill beyond). When Bergman's Eagle lands in the next two landings, Alan's and Koenig's Eagles have moved left sharply.
When landing, the Eagles move to the correct position. Only then does the Eagle fire the vertical retros (with sound effects and kicking up much dirt), and then descend. As seen in the last landing (when Bergman returns), the vertical retros stop (again, with sound effects) before the Eagle has fully landed- it gently floats down the last few metres as the dust clears. Thunderbird 2 in Anderson's series Thunderbirds also landed this way.
Sandra wakes up and puts on her belt, calling for Alan. She walks forwards to the command module and talks with him. Then she goes back to the passenger module and gathers up the sleeping bags, glancing at the clock on the computer wall. The clock had not been on the computer wall when she woke up. The desk in front of the computer has also moved position.
Of the actors from the Eagle One medical team, 4 never appear as cave-people: co-pilot Colin Rix, orderly Chris Williams and nurses Kathy Mallory and Glenda Allen. Only guard Tony Allyn appears as a caveman. There are two Alphans regularly seen in Main Mission who must have been part of the first Eagle mission, Andy Dempsey and Sarah Bullen. Dempsey is seen behind Helena, along with Williams, when they emerge from the mist. In addition, Lynda Westover had also previously appeared as an Alphan, but is never seen as an Alphan here.
The cave people who we never see as Alphans include guest star Oliver Cotton, Jeffrey Taylor, Anthony Powell, Tony Boyd, Lisa Woods and Jacqueline Blackmore.
Copyright Martin Willey