This is a good old fashioned action movie disguised as a Greek drama with special effects. I saw the movie in 2D
and it seemed all right. Sam Worthington was awesome as the blood and guts Greek hero, and the cast was nice as well.
The struggles of Perseus, against mighty crabs, assasins, Hades (played by Ralph Fiennes) and titans like Medusa and Kraken all contribute to make a magnificent story . Not since Troy has a classic story like this gained so much attention.
I am not sure if watching in 3D is going to be more entertaining, but the movie was quite nice in action and sword fights.
Recommended especially for a day when you need a movie break!