Also there could be logistical problems, such as conflicting shooting schedules, continuity if the set is not quite the same as it was (if it should be the same) or different (if it should be).
The latter problem arises because the set dresser may be unaware of changes created by the action.
Some of the reasons for its success are as follows: However, such perfect circumstances are rare and any Trekkie will be quick to point out that the schematics seen on Reliant are clearly those of the Enterprise.
This often led to audience members recognising sets which had appeared in previous films.
A double feature of two Twentieth Century-Fox films of the mid-1950s, O. Henry's Full House and We're Not Married, caused unintended laughter[who?]