Film Review - Wrath of the Titans (in 3D)

I'm a huge fan of the old Greek/Roman myths, and love to see them on-screen, in any guise. Even the Clash of the Titans remake, which was mostly terrible, did enough things right to get me into this sequel. Unfortunately, I should have heeded the first one's warning. Rather than concentrating on the story of Perseus's further adventures, we get lots of ramble and crowbarred-in back story involving a son and a new love interest. But there's giving a character depth and development, and then there's just wasting the audience's time. It's a fine line, but this definitely falls into the latter category.
For example, when Perseus is presented with the legendary labyrinth, it looks impressive and unachievable. A matter of minutes later, he's in the centre. But at least that means it's time for his legendary battle with the Minotaur, right? A matter of seconds later, it's all over. Seriously, what have I paid money to see here?
The final, climactic battle with the mighty [insert name of whatever the giant lava thing is called] is quite visually impressive. But it's too late, I've had far too many naps by this point to give a shit.
And the 3D is still crap.