I don't get the hate for origin stories.
Look, we're all posting here on Superherohype, so we're obviously people who are familiar with superheroes. Some of us have been general comic book fans, others may have followed the animated series', others may solely have followed the TV shows and films. But we're all familiar with the more famous superheroes, and their origin stories.
That doesn't apply to Joe Public. My girlfriend is a prime example; she's intelligent and well-read, and would immediately recognise the likes of Batman or Superman, etc. But ask her does she know why Superman put on the cape or Batman put on the cowl, and she wouldn't have a clue. I can say the same for a number of my cinema-going friends too. And these are people who matter, people who will pay $$$ to go and see these films and contribute to the box office take and any future sequels.
My girlfriend actually wouldn't be a fan of science fiction or comic book movies. Like a lot of girls, she's into her rom-coms and dramas. But I sat her down last year and made her watch Batman Begins and The Dark Knight and she loved both. She actually remarked that they weren't what she expected (all explosions and fights, etc) but had a lot of backstory and character development - particularly in BB - and that's what sold the films to her.
From the point of view of film-makers, the origin story is a great tool to introduce your audience to the unique universe which you have set up. Take Batman for example. The last Batman universe seen on screen (Burton's 89 film) did tell of Bruce Wayne seeing his parents die, and that was his motivation for becoming Batman. But why choose bats? Where did he get his weapons? Where did he learn his skills? It wasn't very fleshed out. That was grand at the time, but the movie audience in 2011 is a bit more savvy and their expectations are higher - it's harder to just turn a blind eye to obvious questions which arise from a story.
That's why I like what Nolan did. The first half of Batman Begins doesn't feature Batman at all, and that's actually the most interesting part of the film for me. Of course it's great when Bats finally shows up and starts kicking some ass, but I loved how Nolan tackled the questions which many other Batman directors simply ignored - namely, how and why Bruce Wayne decided to become a masked vigilante. If Nolan had totally ignored the origin and brought out a version of The Dark Knight as his first Batman film - straight into a Batman/Joker faceoff - I can't accept that Joe Public would have bought it quite as well as they did.
And that's only using Batman as an example. His backstory is actually fairly simple - his parents get murdered, he grows up an angry orphan seeking vengeance. The costume, weapons, etc ...... it's all window dressing concealing the real story undernearth, which is not that complicated.
Take something light Green Lantern and the origin story is even more important. Without it, you're asking your general audience (with little or no knowledge of someone who doesn't have the instant recognisability of Batman or Superman) to simply buy into this guy dressed in green with a power ring which can project all his thoughts into reality. And who answers to a bunch of guys called the Guardians on the planet OA. Much more difficult to sell than Batman, and as we've seen from the Green Lantern flick, even with a full origin it's a hard story to make work on screen.
On the flipside, you can also overdo it. I think an origin story only needs to be told once for ever generation of fans - say every 15-20 years. That worked fine for Batman. Superman is long overdue a movie origin story (33yrs since the last one - and no point counting Smallville as it only had circa 3m viewers when it ended, which is a small portion of your cinema audience). Something like Spiderman on the other hand, I really don't think an origin story needs to be told again so soon after Raimi did it.