Maybe it was the performances, maybe it was the script. Most likely both. But I found myself in the odd position of not caring that much about what happened to the two title characters. I wouldn't call their performances bad, just so-so and not emotionally compelling enough to draw me in. Chris Hemsworth was by far the better of the two, I think, but…I dunno. For some reason, I just wasn't feeling it.
( Cut for vague and not-so-vague spoilers )
Overall, I'd say the movie was okay to good. Visually, it was very impressive. Loved the Enchanted Forest and the fairies, in particular.
I don't care to see it a second time and had I known in advance what my reaction to it would be, I'd have waited for DVD. Or I would have been okay with not seeing it, too. While I didn't consider it a waste of time or want my money back. I just shrugged and thought, "Eh…could have been worse."