I think the monochromatic version looks great, but what you did for Fallout on post 8 with the orange fade toward the bottom is also a really cool option and helps bring additional movement.
For the back, you might have a tiny bit too much dead space under the special features text. Maybe you could put the globe faded in the background of the red box, just to break things up a bit -- although, I don't know if that would clash with all of the other flat red pieces? Perhaps making the box black (or really, really dark gray) would be more neutral so the dead space isn't as noticeable. Or, maybe you could swap positions and put the stills on top -- perhaps not cut quite so deeply around the heads?
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I love these movies, and we've seen some great cover sets for them, but your designs are a really exciting new take!
I agree with the guys above though 
