You have to remember that this is a propaganda film. The music ,the carefully edited scenes with smiling faces and friends hugging eachother as violins play is meant to tug at your nostalgic heart strings. Change the music....show a few shots of kids sitting in the sun for hour upon hour listening to Fred Franz's manical voice....women waiting in line with children to use a bathroom, families sitting all day on hard bleachers under a plastic tarp as a rain squall passed over.... old ladies and pregnant women being hauled off on stretchers after passing out, Apostates picketing outside, a disfellowshipped person sitting all by himself and the film would take on a whole different feel.
For me the only thing good about the Assemblies was seeing your friends during the breaks. The good memories I have of the assemblies were only momentary and they are only considered good when they are compared to the rest of the Assembly experience.