I personally don't think there should for a few reasons:
- Movies based on video games are almost guaranteed to suck. Super Mario Bros., Mortal Kombat: Annihilation and all the resident evil movies are perfect examples of this.
- What is done in the game all depends on the player. Yeah, most quests follow a story that every player has to follow, and they have no choice but to say what's programmed for everyone to say. But for outside quests, what's done in the game totally depends on what the person playing the game chooses.
Yeah, I really don't think a live-action RuneScape movie should ever be made, what do you guys think?