Technologically, I was quite impressed. I wear glasses, and it took some time for my pair plus the RealD pair to find the space on my (admittedly large) nose and be comfortable. The dimensionality is rarely showy (but it is a few times), but really adds to certain scenes.
In terms of the uncanny valley, I honestly found myself on the other side a few times (mostly with Beowulf himself). On the big screen, the animation quality is astounding. Getting beyond the character models, the backgrounds and atmosphere work was incredible. And Grendel was a truly, truly nasty piece of work (visually, he was just disgusting).
Onto actual movie stuff, Zemeckis is up to his usual tricks, but he's a master. The acting was exceptional, especially Ray Winstone. The story was good, but zipped along quickly through some points that I would have liked it to linger upon. Still, a pretty good film, outside of the technology.
Are we seeing a glimpse of the future here? I think we are, both in terms of artificial actors and 3D presentations. There is still a ways to go on making each a valid form of cinema, but Beowulf makes some mighty strides. If you love movies, you should check out a RealD screening (or an IMAX 3D screening). It's that impressive. If you wait to experience this with Journey to the Center of the Earth 3D, you might be missing out
8/10,
Chuck