Saw Clash of the Titans yesterday and I must say that I was quite satisfied with the remake.
To anyone thinking of going to see it, I would suggest skipping the 3D version and going straight for the 2D version.
A lot of the bad reviews are due to the 3D version of the film as it was 'converted' in post-production (unlike Avatar) and it's actually worse off for it. Just Google 'Clash of the Titans 3D' and you'll see what I am talking about.