Please proofread:

I saw this movie once in a theater and another time on rental. As much as I agree with the inexperienced acting from most of the cast, I can't say that it was poor protrayal of what certain minorities in the US have to go through on a daily basis. I am myself a minority, have been through variations of what happened to each of the protagonists in the movie. Movies in general can either stimulate our creative minds by having us imagine a world beyond what is the norm to our own lives, or sometimes it'll make us feel like viewing a film of our own lives, because it may have happened to our particular self.

So, it's hard to just say that this movie wasn't good or the acting had been sub-par, because have you really experienced or even know that their are parts of America like the one in this movie?

Maybe his emotionless and stoic demeanor was because of his inexperienced acting or maybe it was also because of how nervous he felt working w/ a big name actor or it could've been the anxiety of living in a community surrounded by negativity and needing to deal with it not by choice, but by fate.
I have underlined some problem areas and struck out unnecessary verbiage:

I saw this movie once in a theater and another time on rental. As much as I agree with the inexperienced acting from most of the cast, I can't say that it was poor protrayal of what certain minorities in the US have to go through on a daily basis. I am myself a minority, have been through variations of what happened to each of the protagonists in the movie. Movies in general can either stimulate our creative minds by having us imagine a world beyond what is the norm to our own lives, or sometimes it'll make us feel like viewing a film of our own lives, because it may have happened to our particular self.

So, it's hard to just say that this movie wasn't good or the acting had been sub-par, because have you really experienced or even know that their are parts of America like the one in this movie?

Maybe his emotionless and stoic demeanor was because of his inexperienced acting or maybe it was also because of how nervous he felt working w/ a big name actor or it could've been the anxiety of living in a community surrounded by negativity and needing to deal with it not by choice, but by fate (??).
I saw this movie in a theater and on rental. As much as I agree with the inexperienced acting from most of the cast, I can't say that it was poor protrayal of what certain minorities in the US have to go through daily. I am a minority and have been through variations of what happened to each of the protagonists in the movie. Movies can either stimulate our creative minds by having us imagine a world beyond the norm to our own lives, or it'll make us feel like we're viewing a film of our own lives, because it happened to ourselves.

So, it's hard to just say that this movie wasn't good or the acting was sub-par, because have you really experienced or even know that there are parts of America like the one in this movie?

Maybe his emotionless and stoic demeanor were because of his inexperienced acting or maybe it was also because of how nervous he felt working with a famous actor or it could've been the anxiety of living in a community surrounded by negativity and needing to deal with it not by choice, but by fate (??).

I've corrected it to the best of my abilities. I don't really know what I should replace the other underlines with.
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I saw this movie in a theater and as a rental DVD. As much as I admit the inexperienced acting from most of the cast, I cannot agree that it a poor portrayal of what certain minorities in the US have to go through daily. I am myself a member of a minority and have been through variations of what happened to each of the protagonists in the movie. Movies can either stimulate our creative minds by having us imagine a world beyond our own normal lives or they can make us feel like we are viewing a film of our own lives, because it happened to us

So, it is hard to just say that this movie was not good or the acting was sub-par, because we have not experienced or even realize that there are parts of America like the one in this movie.

Maybe his emotionless and stoic demeanor is because of his inexperienced acting, maybe it is also because of how nervous he feels working with a famous actor, or it could be the anxiety of living in a community surrounded by negativity and the need to deal with it not by choice, but by fate (??-- You cannot 'deal' with something 'by fate' – fate does the dealing – so you need to revise this final sentence.).
1. I cannot agree that it a poor portrayal of what certain minorities in the US have to go through daily.

Is this sentence grammatically correct?

2. Maybe his emotionless and stoic demeanor is because of his inexperienced acting,

Why is it is when we're talking about both emotionless and stoic demeanor?

3. Final sentence: but what fate has given us.

Is this better?
1. I cannot agree that it a poor portrayalof what certain minorities in the US have to go through daily. Is this sentence grammatically correct?-- No, my mistake. Please insert 'is' after 'it'.

2. Maybe his emotionless and stoic demeanor is because of his inexperienced acting, Why is it is when we're talking about both emotionless and stoic demeanor?-- Because it is one demeanor expressing both inner emotions (which are, by the way, so similar that you would be better to omit one.)

3. Final sentence: but what fate has given us. Is this better?-- Yes, very good.
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