I seen the film and actually enjoyed it, a little slow at start and in places but it was more about bringing the links to the Original, and when dorothy arrives, we now know where the scarecrows come from, why the lions had no curage, not sure of the tinman link
Also the machine the wizard uses.
Think people who not liked it where comparing too much to the orginal, the witches where evil but they did not become more evil till after Oz defeated them. thats why they seemend less like witches we know.
Great film and a great prequal to WOO
Great in 3D - in fact ive seen a lot of 3D movies and this one is the only one Ive seen that you know you watching a 3D movies, or the others I forget Im watching 3D and looks like 2D.