At the Russian fair Igromir 2009 Remedy has done a long gameplay demonstration of Alan Wake. Some of the scenes were already seen in the past but others are new, and this si much more longer than the E3 demo with about 15 minutes of gameplay. Here's the entire demo splitted in two videos.

Alan Wake - Igromir 2009 Demo - Part 1
Alan Wake - Igromir 2009 Demo - Part 2