This newsbit is somewhat late, given that the information was actually added to the wiki quite a while ago. But given that most people probably don't pay much attention to edits done to the Fallout movie page, I decided to post it anyway.
Apparently, in the DVD commentary for the Mutant Chronicles movie, Ron Perlman stated that he was the narrator in a action heavy videogame that he thought was being made into a movie, and where the tagline was "War never changes". Is it an actual confirmation of the Fallout movie rumors, or maybe he's just mistaken?
We cannot be certain for now, but keep in mind that earlier this year Bethesda Softworks applied for the Fallout trademark for "Entertainment services in the nature of an on-going television program" and for "motion picture films about a post-nuclear apocalyptic world". So there might be some truth to the rumors, especially given that if a Fallout movie was being made, Ron Perlman would definitely be one of the first actors approached by the studio.