Saw this on Monday, and there doesn't seem to be a review of it here yet, so I'll try. Without wanting to give away too much of the story for those who haven't seen it, the plot is more action-oriented than previous Shrek films. I expect this is partly because this is supposedly the last Shrek in the series, so there's no need to develop the characters any further, and partly to make use of the 3D effect to the max, which it does.
So on the 3D. I've never seen a 3D film before, and didn't know what to expect, but it was impressive. You really feel you could reach out and touch the things you see, at some points. Particularly the scene at the beginning when the six white horses pulling the carriage seem to actually ride up to you and pass on either side. Some of these effects were the only time I've heard an entire Indian cinema audience go silent! Indian audiences do not normally restrain themselves from discussing the film while it's happening. OTOH, some of the big fight scenes with the witches flying around seem not to have benefitted as much as you might have expected, once you've seen some other scenes. If you see what I mean...
The special glasses were my only niggle concerning the 3D effects. Firstly, it turned out you had to pay a fairly high sum cash deposit to get them. It was only chance I had enough cash on me. But that will vary from cinema to cinema, or at least chain to chain, presumably. It would have been ok if it had been announced in advance, but we didn't find this out until entering the theatre. The glasses were advertised as "enhancing your enjoyment" but in reality if you didn't have them, you would see everything in double vision with red and green tints around the edge. The glasses were in plastic packaging advertising they had been UV sterilised. Well, they may have been sterile, but they weren't clean, there were big fingerprints on the lenses. They cut out quite a bit of light even without that. Also they are only in one size, but that didn't seem to be a problem for me - I have quite a small head - or even my son (age 6). I found wearing the glasses a bit tiring after a while, though not unduly. I don't know how it affects people who normally wear specs - there didn't look to be space for another pair under or over.
We're used to lots of movie references in Shrek, but this one gets self-referential, which is funny, but repeated a bit too much I thought.
Anyway, a good movie, I thought. What did you think?