Halloween is a big holiday here in the US, but so far I havent seen too much listed on LondonTown.com about Halloween events in London. Like parties, festivals, etc.
I will be in London from Oct 28th to Nov 7th. I know there is a pagan/witch kinda festival at a college there but it's the weekend before I arrive.
I also know there will be fireworks on Nov 5th and I printed out some info on a bonfire at Ravenscourt Park that night which looks like a good bet.
If anyone knows of any interesting goings ons on Oct 31st, if any, let me know!