If it were to be a movie, my guess it'd be a live-action or anime/cartoon movie. A cartoon movie would not be released in theatres and be something only fans of Tekken would get crazy about. If it became a live action flick, it will probably not fair any better than its predicessors, Mortal Kombat, Street Fighter, DOA, all more popular series pop culturally if you ask me. Tekken's potential to be a movie: decent. Tekken's potential to be a good movie: nil.