- Trying to make everything epic. What ruined the soundtrack in LOTR (and The Hobbit), for me, was the fact that it never shut up. Not every scene requires grand accompaniment.
So much this. A good soundtrack can really enhance a movie. But it doesn't need to underline constantly whether I'm watching a dramatic scene or an action scene (as in LOTR and The Hobbit), or be a selection of the most obvious songs you could think of (Watchmen). As a matter of fact, I think the best soundtrack (or audio design really, as there isn't hardly any music) of recent years was No Country for Old Men. The results were tremendous, I don't think Anton Chigurh was any less terrifying despite not having a theme song accompanying him.