I know many, if not the majority of Fallout fans never played the originals and can't be bothered to now because of how old they are and how different they are compared to the newer ones. With that in mind, I think a couple Fallout movies that follow the events of Fallout 1 and 2 verbatim would be an excellent idea. It'd be a way for newer fans to get the stories of 1 and 2 and it'd drum up interest for the franchise from people who've never bothered to play any of the Fallout games.