Metroid is confirmed. Go to www.imdb.com and check out what little information they have available! It's slated for a 2006 release. John Woo is involved somehow, although it hasn't been specified as to how he's involved.

There is also a Devil May Cry movie that's been announced. The company that's responsible for it is doing a Tekken movie first, though, so DMC probably won't make it until 2006 or later.