I would forget how much you love the original film when you watch this. It's a re-telling with a whole different vibe to it. Sure you get Medusa, Pegasus and the Kracken but the underlying story has been changed. The film itself is a bit of a no brainer but the sets and effects are great most of the time, pegasus's wings look flawless.
The bonus features are pretty good, the deleted scenes flesh out with characters and gods which begs me to wonder why they where cut in the first place as character building was misssed in the film itself.
The alt ending is also interesting, thankfully they changed it!
On the whole its worth a watch if you like the orginal but don't campare it just enjoy the 2 versions .