I think choosing auras is ok. I vote in accordance to what I feel the movie deserves. so what if more of the movies I vote on make the top 50 rather than being blammed? I consider myself neutral.
The protection/Guardian/whatever points would probably result in a "Justice Club" or something (like the blam club) that helps good movies get good scores and bad movies get blammed. or even just let good movies getting bad reps by jokers or gangs recover. so I think they are a good idea too.
more ways to get EXP than voting, and referrals (which leads to people creating multiple accounts to refer to when submitting crap movies) would be cool. I have been on here for 3 years and missed a good 8 months of exp last year because I lost interest in them. (resulting in not voting after viewing)
I'm sure whatever you guys do to the site will work out just fine. Keep up the excellent work.