For this and other fun events in October - check out Kadi's blog here: http://blogs.angloinfo.com/cinematic-paris/2012/10/04/what-to-do-in-paris-in-october/
Living in Montmartre, I must write that tonight has been fun. Drummers marching down the street and lots of fireworks. The dog seriously complained about the fireworks, but hey, it doesn't happen often. The sense of fun abounded and lots of people were dressed up. The wine is considered to be, by some, a collectors item.