First things first. If you are asked to pay more to watch Clash of the Titans on the big screen in 3-D, don't waste your money. There is absolutely no bang for your 3-D buck. Clash was not originally conceived or filmed as a 3-D movie and this becomes quite evident in climatic scenes that beg for the 3-D treatment but, oddly, do not get it. Tellingly the best use of 3-D in the entire movie is when the CLASH OF THE TITANS title flashes on the screen at the beginning and the end of the film. Woo! Woo!
For anybody who has seen the original Clash of the Titans (1981), the new Clash is a knockoff in several regards. First of all, the first Clash was top-lined by Sir Lawrence Olivier (Zeus), Claire Bloom (Hera), Maggie Smith (Thetis) and Ursula Andress (Aphrodite) while the new Clash features Liam Neeson (as Zeus), Luke Evans (as Apollo) and Izabella Miko (as Athena). Fiennes does his best Lord Voldemort shtick as the God of the Underworld but his Hades is another odd add on, replacing the god Poseidon. The star power of the actors playing the gods is not the only thing that has been devalued in Olympus. The goddesses Hera, Athena and Aphrodite, who have prominent roles in both the original myth and movie, have been almost completely excised in the new movie.
Then there is the matter of Sam Worthington's portrayal of the demi-god Perseus. In the original, the kewpie-lipped Harry Hamlin actually looked as if he had been kissed by the gods. Worthington, on the other hand, is another slab of Aussie lumber from Down Under, a blunt piece of wood who goes about his hero's journey with a sullen, stolid resolve. Worthington's performance coupled with Louis Leterrier's (Transporter 2) direction robs Clash of most of its wonder and magic and turns it into another grim retribution flick, albeit one with flying horses and chicks with snakes for braids.
The love story between our hero and Andromeda (Alexa Davalos) has been completely jettisoned and replaced with a completely contrived relationship between Worthington and Gemma Arteton (Io). That said, Clash is satisfactory in a Harry Potter sort of way, with well-trained British actors slumming amidst competently executed special effects. The Kraken and the Gorgon Medusa are given impressive life on the screen and the Pegasus is a wonderfully impressive creation. It is not a terrible way to spend an evening. It is also not necessary to see it in 3-D.