Hollywood has had a tendency in the last two decades to remake movies and turn cult TV shows into feature films. What do you think are the worst remakes?

Why do you think they failed? Was it the writing, the source material, or just the fact that it was from a different cultural era? Were you a fan of the original and do you think that colored your expectations for the remake? If you were unfamiliar with the original material, did the remake stir interest n reviewing it?