> Williams didn't care if people remembered his bunch of themes after
> watching the movie, he wanted his music to evoke feelings during the
> movie, but he also wanted it to work (tell the story)...
This could go on and on, however, you do make a good point. I realize that motifs help tell the story, but one doesn't always need one to move the story along. Look at the scene in A New Hope when Ben Kenobi is struck down. Williams could have written a new, more poignant motif for that moment, but decided that Princess Leia's theme would fit the bill.
As an aspiring film composer, I realize about needing to tell the story, not just laying music in. I just feel it's crazy to go on about how many new themes there "should have been", when Williams obviously wrote it the way he did for a reason. Anyway, I am reserving my final analysis for after I have seen the film. After all, the music was written to go with the film, not necessarily for the concert hall.