I would either lose the actors names from across the top, or move the picture down so that they aren't across the illusionists head.
On the rear I think the "first feature" in the special features needs more work to look realistic. To me it seems to dip down on the right hand side too much. Perhaps move them all down a bit so that they are centred in the orb where they would need less contouring to the orb shape.
Off the topic of this particular cover it seems that most of the feedback you receive says "good job". I would assume that if you are posting in here then you are looking for more than that (otherwise you would post in the showoff section) Maybe they are too scared to "piss off the boss" Perhaps you would receive more valuable feedback if you posted in the Resident Artists WIP section? (assuming it still exists)
As usual, my 2 bobs worth & a threepence more.
ps. I'd appreciate it if you would have a look at my Running with Scissors WIP & add your thoughts. (IMG:http://www.hirescovers.net/forum/style_emoticons/default/8834.gif