Paxboy
First films I can remember were on 707 with centrally mounted projectors dropping from roof in the gangway (I think) and it would be BCAL either coming up from, or going to South America when at school. For some reason I think it was Annie Hall so mid 1970,s. However you only got 1 film for the whole trip, and yes I do remember those tube like earphones as well. In retrospect you do forget how spoiled we are now on long haul for entertainment at least.
TrakBall
Most long haul carriers I have flown recently have nose camera,s and even tail camera on A380. I did not know that you did not have them on carriers on your side of the pond (I assume you are in US). If I am going your way then I am on a European carrier for the long haul section, so only smaller A/C inside the empire where I do not expect to have in flight cameras.
Regards
Mr Mac