I thought that it was clever modernized adaptation of the Wizzard of Oz theme, but not story.
The things that seemed silly though were that they called it the "O" Z", rather than Oz, and that they called the hero DG. I thought that Glitch was a wonderful character. The Tin man was less impressive.
The Lion character was a completely 100% stolen from a 1970s Doctor Who episode staring Tom Baker
(the last Ramana Episode, for those who are curious). In that episode a psychic Lion-like species was hooked up to a machine, that used thier psychic abilities to navigateships though time. They had similar wounds to thier heads and everything!
The Bad guys looked like they had re-used the Harkonens uniforms from the movie "Dune" (and they acted similar too).
But even with these amusing factors, I still generally enjoyed it, up to just before the end, and which point it felt like they cut-it-off the very instant that the goal had been achieved, and gave no proper wrap-up.
That aspect annoyed me.
Even two more minutes could have wrapped things up nicely, but they didn't bother. How dissapointing...
