Immortals 7/10
I'll preface by saying I absolutely loved it. Had a blast, will buy it on DVD when it comes out. Tarsem's dreamlike design brilliance is all over this film, elevating what would have been a by-the-numbers mythology influenced story into an engaging fantasy action film. And Gods...fight like Gods.
So why not 10 of 10? It could have been more. It's a fairly simple plot-driven film, but not a lot of depth beyond the superficial. The subtle character and narrative depth of The Fall is all but entirely absent. You meet the characters, and instantly know all you need to about them. A couple narrative and dialogue groaners, but for the most part it was well done, if formulaic. And be forewarned: it is NOT an adaptation of Greek mythology. It is a fantasy film that uses some of the people places and things. Yes, there is a guy named Theseus, and yes he goes into a labyrinth (and fights a minotaur, of sorts). But that's about it. Which is a shame; I love labyrinths in general and the original story is interesting enough to make a straight adaptation engaging.
But if you can get past that, and just see it as a fantasy action film, it's loads of fun, excessively vicious and stunningly beautiful. Mickey Rourke is fun to watch, as always. Right from the opening shot of the Titans, the surreal beautiful nightmares that defined the Cell are present and plentiful. The fights and other action scenes are big and exciting (some great sound design work too) and the score, while largely forgetable, is bombastic and keeps the pace of the action up.
Didn't see it in 3d, so can't comment on that.