Here’s a little goodie for the German speaking part of this community:
In 1999, a German TV show for children (Die Sendung mit der Maus) showed how an Airbus A321 is build. What’s special about this, is that they actually show the process from the very beginning, starting with the very first metal plate.
The documentary can be found on YouTube. The videos are only available in German, but even if you don’t understand anything, it’s interesting to watch.
10 years later, they showed how a D-Check is beeing done, on the same plane. Also very interesting to watch.