This all-star pairing is definitely producing all-star results! You two are really creating a great cover here.
Just to further unite things...
Clint, maybe you could use the same color for your tagline as Michelle used on the "Watch it anytime" text?
If you want to include the "An Animated Avatar," maybe Michelle could make that the back quote instead? And maybe in that same tag line font? Using the shorter quote and smaller text size could give you a little more breathing room, while re-using the tagline font would further streamline everything.
Maybe you can use the back images' rock border around a spine image?
[attachment=27643:spine.jpg]
Your partnership is looking outstanding so far. It's some of my favorite design work I've seen from both of you, at the top of a very long list.

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