The faking part is something that puzzles me though I know it should not. It appears not to be thought through. 2001 tried to be accurate to physics as I understand. The pen in the craft going to the station was done on a glass plate if memory serves me. No computers to CGI it or post production erase wires. The Discovery set was a huge ferris type wheel and so on. That all took special skills to make it look so good. That meant effects people in numbers.