Decent work!
Excellent movie here with excellent extra potential. I like the recurring theme of incorporating new stuff into old movies.
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Well, of what you have (so far), I can't say the concept hasn't been done before (VGDC and Razoric's movies). But in comparison, this is just as good as the other two top-50 SvM movies.
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You have decent animation and graphics skills; the style seems almost DBZ-ish in nature. Was this the intent? I liked the fight scene okay, but I particularly enjoyed the ending twist with Luigi. I love cliffhangers.
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As far as your commentary rant - I say don't let it bother you. I think the reason why a lot of top-50 movies get bumped down so quickly is simply that people want to see OTHER movies in the coveted top-10 spots. That, and the fact that people like to see fresh material on the top 50 instead of the same old mish mash. But hey, be happy with what you got! You're solid on the top-50, man! That's some accomplishment!
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As far as portal reviews, I think the majority of the Portal Public give pretty honest reviews of what they see, regardless of who you are. If they like it, they'll tell you why. If they don't, they'll tell you why as well. You can't make a movie that pleases everyone, and you just have to live with it.
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Anyway, I'm really looking forward to the rest of this movie!