Les Inrockuptibles and FNAC have launched a new events guide for Paris: lesinrocksParis.com. Concerts, cinema and exhibitions are all covered (and users can add their own).

No feeds though, as far as I can tell :-(

Here are some Atom versions of scraped 'this week's cinema' pages:

LesInrocksParis (Atom)

Yahoo France (Atom)

Yahoo's listings have more detail.