I had to see it with my own eyes to believe it. So, it's my turn to trash it.
The movie is a remake of the 80s which follows Perseus' quest to save the world. For those of you who don't know, he's a demigod, son of Zeus, who wants to revenge his mortal family.
There's no delicate way to say it: the film is boring. The characters are predictable and linear, so even if the actors were good, you couldn't tell it out. Concerning the story, it was not supposed to be original (remake, remember!), but being an action movie some thrills were in order, but they're kinda washed out; not to mention the transitions from scene to scene, or the involvement of some characters.
The SFX and the CGI were ok, though not that spectacular to render the movie more attractive. It's true I didn't see it in a theater, but given the fact that everybody criticized the 3D conversion, I'm not sure that it would have mattered.
The only cool scene was the battle against The Medusa, but that's just not enough.
In conclusion, this movie could be skipped without much remorse.
Stuff - Spoiler Alert!!!
I didn't understand why the film (even the original one) was called Clash of the Titans, the Gods are barely present, so why mention they ancestors. Speaking of the Gods, Hades really needed some throat pills.
The two hunters seemed fun at the beginning, but they quickly became anachronistic and then disappeared with no reason. And the sort of prophet was creepingly annoying.
Come on, a black Pegasus!
It's really intriguing how come Hollywood skipped this opportunity for another cheesy love story, because originally Perseus started the quest in order to win Andromeda's hand.