I bet if you asked 100 random comic fans what the firs appearance of the Joker was they wouldn't know. I think many people forget that it's the first Joker and first Catwoman, to me that isn't the first think people think of when they think of a Bats 1.
The movie hype may help a random high end sale but I doubt it is going to impact a 1.0 or .5 sale at all. When the 1989 Batman movie hit there was an upswing in high end price because non collectors wanted the bat books, that isn't going to happen with low end copies. I think overall the movies have little to no impact on value.
James G
although I don't believe GA books value increases are dependent on movie hype, I do remember when "Dark Knight" was in theaters, Batman #1 had an uptick in prices across all grades including restored copies, so I feel we will see more of the same to some degree with the upcoming DC movie projects.