Hi. I'm new here but keen to help out where needed. Setting up my XBMC system for the first time, I noticed some strange genre classifications for a few films. I thought I might make the corrections at the source rather than local to my system. In particular, it looks like Science Fiction is sometimes applied to Fantasy films - Babe, Ghost, Lord of the Rings. It's a common mix-up in the literature too, so it's not surprising.

If the genre editing is working, I'll have a spin through the Science Fiction genre and delete the genre from films that are really more Fantasy. I hope this helps! I'll leave ones like "V For Vendetta" which are marginal - some put dystopian futures in Science Fiction even when there's not a technological cause. If I'm over-enthusiastic in the edits, just ping me here and I'll be more conservative.

Cheers!