DanDeFool said:
Also recall that Star Wars was a throwback to the adventure serials and campy sci-fi that was popular when the boomers were kids. Something to think about.
Star Wars was a hodge podge of a lot of stuff, the landspeeders/Space battles were Flash Gordon; as were the Gamorreans/Jawas, Han Solo/Cantina is the Westerns; the script is Joseph Campbell, the lightsabres were pure Zorro...
But again, Zorro created Batman, the westerns went to Police Drama which went to CSI, Flash Gordon came from the Pulps and went forward to Sci-Fi (The Matrix?).
Most of film's history is self-devouring.
I think you're unfair to trot out all the crud though - there have been some truly great films (The Blair Witch Project, Police Academy (Only the first - A Real Life Police Pantomime), Troll Hunter, Pan's Labyrinth, Dog Soldiers, District 9) - YMMV but there's been startling few good series that haven't been drawn from other media first.
Just as Flash Gordon (which would be the Baby Boomers "Star Wars") came from the Pulps etc. etc.
Now Harry Potter reflects Generation Y's growing up - we're still in private school territory, with terribly middle class kids and Lord of the Rings again, is terribly terribly middle class.
Transformers though...it's classless. it may be a robotic dirge by someone who really doesn't like the Transformers themselves - but that's how Lucas was. Alec Guinness especially loathed it.
The people who liked Harry Potter liked Harry Potter. The people who liked Lord of the Rings liked Lord of the Rings.
The Transformers people though...there's not even a consistent view of what they are. Potterites, Whovians, Trekkies, Middle-earthers are all very distinct groups.
Transformers likers aren't. Star Wars likers aren't.
That's why I say Gen Z is Transformers. And Generation AA(?) will probably be the Marvel movies.