Personally, I’m informally refusing to go see Spielberg’s War of the Worlds in the theatre because Tom Cruise is insane. (Although mostly it’s because I’m cheap and lazy and already spent too much time in the theatre watching ROTS.) You can’t hold an actor’s Scientology-induced dementia against H.G. Wells, but you can read the entire text of the original War of the Worlds online for free, since it’s out of copyright. Dark Horse, the folks who bring us SW comics, are also getting in on the public domain action with an eComic adaption. This book cover collection of the various editions of the sci-fi classic is also worth a peak. For a more classically flavored take on the definitive alien-invasion tale, I’d also recommend Alan Moore’s League of Extraordinary Gentlemen Vol. 2.
For those inclined towards a more modern era of WOTW, War of the Worlds Invasion: The Historical Perspective is a great resource for info on Orson Welles’ infamous 1938 radio broadcast, as well as many other adaptions and historical information. They even have a blog.