Fire Emblem and possibly Earthbound are the only ones I could see working out well as a movie. They're the only Nintendo franchises with, well, actual characters that talk a lot, which is kind of necessary for a movie/TV series. Maybe Star Fox, if it was made as a comedy.
I think both Metroid and Zelda would be terrible choices, given that their protagonists hardly speak, unless they shift the focus away from Samus/Link to a new group of characters and keep the main protagonists in the background as some side focus.









