Re: Capt. Marvel/Ms. Marvel Film? (Good idea or GREAT idea?)
Bad idea. Don't bother with Mar-Vell at all and just make Ms. Marvel. She doesn't need Mar-Vell to have a workable origin, and having her dependent on another superhero who'll die is just starting her off on the wrong foot. Set her up as the main hero of her movie series from the start, not the backup hero.