It does exist. In which the movie is like 80 minutes so probably no. No matter how bad a movie is, you can't just chop that much off.
I've never thought of it as disrespectful, as I welcome making a movie better or seeing a "What if?" sort of thing. But I've looked at the list cuts of many of them, and they only seem to be done for persoanl fan desires that don't really serve much purpose for the film. Instead of just accepting and embracing some of the stuff, they take everything away. Take the Schumacher Batman films for example. I know there's a couple for BF that took away the score and replaced it with Elfman's which is wrong. Even thoguh Schumacher didn't do the best job, it's still a Joel Schumacher film. It's trying to be something it isn't, and in fact, it suffers instead of being better.
Now with the right footage and editing skills, you can make BF a better film. But embrace it as a Joel Schumacher film and keep the score and such. Because there's no point. Burton isn't directing, and Keaton is no longer Batman. Take out the stuff that has no purpose for the story. Like the stupid humor and the homosexual undertones of Riddler and Two-Face. But some stuff you can't jus get rid of all together.
BF was a wasted potential, because the cut footage was ****ing great and if they kept with the original scripts and cuts, it could have been a great film. Possibly better than even B89 and up there with BB and TDK. It had such a great basis and great ideas. Some of them survived, but it's ultimateld hackened and taken out completely to appeal to the kids.