In my opinion, a movie of either Mass Effect or Dragon Age should be either something from the saga's past, i.e. The First Contact War or the First Blight or something brand new but involving the lore of the games. Shepard, The Warden & Hawke were made for interactivity, they were meant to be shaped by the player, you can't do that in a movie.
In conclusion, I'd love to see a Mass Effect or Dragon Age movie, but I don't need a rehash of the game's plot. Besides none of the games had a particularly compelling story anyway, mostly they were recruitment missions; I don't see those translating that well into film.