The Green Hornet movie was number one at the box office last weekend (despite some less-than-stellar reviews), so if you saw it and want to read up on the hero, iVerse Media sends a note that the books are now available on your iPhone. The Green Hornet comics app is completely free, and separate issues are US$2 each, via in-app purchase. You can read some of Kevin Smith's own work on the series, or check out Matt Wagner's Green Hornet: Year One. I haven't read that one, but I am a big fan of Matt Wagner for sure.
Of course, there are lots of other ways to read comics on your iPad or other iOS device, including the official comic company apps, or finding your own comic book reader files. But if you're looking for some Green Hornet action after seeing the movie, you can give iVerse's app a look.