The first scene with Lord Hall was added in post.
The game the two officers are seen playing together is called Connect Four [a two-player connection board game in which the players take turns dropping coloured discs into a seven-column, six-row vertically suspended grid. The pieces fall straight down, occupying the lowest available space within the column. The objective of the game is to be the first to form a horizontal, vertical, or diagonal line of four of one's own discs] and first introduced in 1974 by the Hasbro · Milton Bradley Company.
Outpost 10 was the redressed Outpost 11.
More actors were seen for Albert than any other role.
Billy Clarke replaced Bernard Hill.