The teaser trailer for The Dark Knight is out — and it blows, much like the film itself is likely to, unfortunately. But just because Hollywood with its billions of dollars of disposable income hasn't yet managed to make a decent film out of Batman doesn't mean others haven't. There was Sandy Collora's Batman: Dead End short a few years ago, which was nothing special but at least got the costume right. And there are a few others viewable online, linked centrally at BatmanFanFilms.com. None of them are particularly well-written or well-acted, but a few of them — Dark Justice and the others from Bat in the Sun Productions being my favorites — look great for being made on a shoestring budget, and are a lot of fun to watch.
My personal favorite of all the Bat-fan films I've ever seen, though, is one that has no production value evident and pathetic costuming, but brilliantly funny writing and acting. It's a comedy short starring Sam Rockwell and Justin Long as Batman and Robin, and also Callie Thorne, who played a detective on Homicide: Life on the Street back when that show was on the air, and it's called Robin's Big Date. If you've never seen it, take a look at it now, courtesy of Google Video: