I think you have partly answered your question. Few people, besides aviation and film enthusiasts, would remember exactly what a BA WT
+ or First cabin/seat looked like. The film set directors would try to match the set as far as possible to the real thing, given the budget and availability of products not to mention copyright laws (BA would have to give their permission for their exact cabins to be featured in any film). Filming in a real First cabin would leave very little space for the camera (and other crews) to manoeuvre, and would also inconvenience other passengers, so the crew would have to take over the whole of the cabin. For this reason it is easier to use a studio mock-up, and there are several places where parts of aircraft fuselages (cut in places to allow camera access) are available for film crews to hire.
As regards airports, as long as there is nothing obvious (e.g the Eiffel Tower in the background for an airport being disguised as Tokyo), again who other than aviation and film enthusiasts cares or remembers exactly what the terminals of LHR
etc look like in a film? The way LHR
are going, they could film in any inside shopping centre and this might bear a close resemblance to the terminals, if they put up a few airport signs, added a check-in desk or two, and asked Mr Branson to do his usual cameo appearance. The production crew will use the most convenient airport that resembles the airport being featured. Many films have been made at Toronto, being disguised as JFK
Regarding accuracy of aviation shots, I recently saw a film that was based on a 767, perhaps Red Eye or something similar. It showed an A320 parked at the gate, a L1011 being used for boarding, an Embraer used for taxiing, a 757 filmed at rotation, a DC9 at cruise level, a A340 landing and interior shots on a 767 or was it an A310? Well, not quite as bad as that, but you get my drift.
Also in The Interpreter with Nicole Kidman, she boarded a BA
744 at JFK
for the BA
direct, non-stop flight from JFK
MOL on SRB's latest attack at BA: "It's like a little Chihuahua barking at a dying Labrador. Nobody cares."