I often thoughtwondered why do Americans love horror films, especially ones concerning zombie apocalypses. I often wondered why Americans love horror films, especially ones concerning zombie apocalypses.

or if you want to go even more literary: pondered

I often thought about why do Americans love horror, especially zombie apocalypsetic type horror. I often thought about why Americans love horror, especially zombie apocalyptic type horror.

I often thought about why do Americans love horror movies, especially those about zombie apocalypse. I often thought about why Americans love horror movies, especially those about zombie apocalypse.

I found funny that there’s such a movie award as called "Saturn" that aggregates such genres such as horror, science fiction and fantasy – Harry Potter vs Saw (in hell I’ll be in a good company). I found funny that there’s such a movie award called "Saturn" that aggregates genres such as horror, science fiction and fantasy – Harry Potter vs Saw.

(in hell I’ll be in a good company) what do you mean by this?

I foind it funny that there’s such a movie award aslike Saturn that aggregates such genres as horror, science fiction and fantasy – Harry Potter vs Saw (in hell I’ll be in a good company). I find it funny that there’s a movie award like Saturn that aggregates such genres as horror, science fiction and fantasy – Harry Potter vs Saw.

I’ve read a theory that this: (cruelty and filth in media) is could be a way to control people. I’ve read a theory that this: cruelty and filth in media could be a way to control people.

I’ve read a theory that this (cruelty and filth in media) is a way to control people. I’ve read a theory that cruelty and filth in media is a way to control people.

"This" is used to refer to something that was mentioned before. You didn't really mention cruelty and filth before.

They (cruelty and filth in media) paralyze people’s will to resist. They paralyze people’s will to resist.

They (cruelty and filth in media) paralyze people’s will to resist. They paralyze people’s will to resist.

Not wrong, but redundant since you already said it in the previous sentence

I also watched a documentary a long time ago. I also watched a documentary a long time ago.

I also watched a documentary a long time ago. I also watched a documentary a long time ago.

The author, who was (American), researched the problem of shootings in public schools and coame to athe conclusion that Americans is a nation of fear. The author, who was American, researched the problem of shootings in public schools and came to the conclusion that America is a nation of fear.

more than one: shootings

The author (American) researched the problem of shootings in public schools and coame to athe conclusion that Americans is a nation of fear. / The author, who is American... The author (American) researched the problem of shootings in public schools and came to the conclusion that Americans is a nation of fear. / The author, who is American...

Better to use commas here since I think parentheses are better used to provide details that aren't directly related to the sentence and aren't that important to its meaning. "The" since you're referring to a specific conclusion, instead of just a general conclusion

I also hacreated my own theory – this is a way to keep the nation in a shape – if It needs,be it, the zombies will give way to the Russians or, the Chinese or somebody else. I also created my own theory – this is a way to keep the nation in shape – if be it, the zombies will give way to the Russians, the Chinese or somebody else.

I also had my own theory – that this is a way to keep the nation in a shape – if It needsnecessary, zombies will give way to the Russians or the Chinese or somebody else. I also had my own theory – that this is a way to keep the nation in shape – if necessary, zombies will give way to the Russians or the Chinese or somebody else.

Don’t take it to heart,; I’m not entirely serious. Don’t take it to heart; I’m not entirely serious.

But I really think that the problems of the world isare largely due problemsto the USA inand its satellites. But I really think that the problems of the world are largely due to the USA and its satellites.

problems (plural)

But I really think that the problems of the world isare largely due to problems USA in itin USA's satellites. But I really think that the problems of the world are largely due to problems in USA's satellites.

I suppose on your side (of the Moon)world), many people think it's due to Russia, isn’t it true? I suppose on your side (of the world), many people think it's due to Russia, isn’t it true?

due to

I suppose on your side (of the Moon) many peoplmany people on your side think it's due to / because of Russia, isn’t iright? I suppose many people on your side think it's due to / because of Russia, right?

"Isn't it" and "right" are similar in that they're both asking the listener for agreement, but generally "isn't it" is used when you're referring to something more specific. Ex: This is your ball, isn't it?

The USSR had on its side states of the Warsaw Pact and a few statcountries ofin Afrikca, Asia, and South America. The USSR had on its side states of the Warsaw Pact and a few countries in Africa, Asia, and South America.

The USSR had on its side states of Warsaw Pact and a few states ofin Africa, Asia and South America. / States in the Warsaw Pact and a few states in Afrikca, Asia, and South America. were on the side of the USSR The USSR had on its side states of Warsaw Pact and a few states in Africa, Asia and South America. / States in the Warsaw Pact and a few states in Africa, Asia, and South America were on the side of the USSR

Today, former states of the WP and the USSR are members of the NATO. Today, former states of the WP and the USSR are members of the NATO.

Today, the former states of WP and USSR are (now) members of NATO. Today, the former states of WP and USSR are (now) members of NATO.

Russia is wrapped up in sanctions, the mosthas countless sanctions imposed against it, the majority of its great territory is as suitable for human life less thanas Alaska or Greenland, but at the same time, it has more population and how large of a share of the world GDP does it hasve?! Russia has countless sanctions imposed against it, the majority of its great territory is as suitable for human life as Alaska or Greenland, but at the same time, it has more population and how large of a share of the world GDP does it have?!

The whole world is against Russia! The whole world is against Russia!

EPrice of eggs increase in prizes dramatically! Price of eggs increases dramatically!

Eggs increased in prizce dramatically! Eggs increased in price dramatically!

I beg you! ) They said that America is being waited a “civil war” or reassembly.wasting away by being in a “civil war”. I beg you! They said that America is wasting away by being in a “civil war”.

They said it wouldn’t be a war-war like in… some other places of the world. They said it wouldn’t be a war-war like in… some other places of the world.

some is always plural

Just a part of elite (members of ruling class as called them a friend of mine called them) lost their power and sources of income . I saw a movie trailer yesterday. Just a part of elite (members of ruling class as a friend of mine called them) lost their power and sources of income. I saw a movie trailer yesterday.

The movie (was) called Civil War. The movie (was) called Civil War.

This is not a complete sentence but I count is as correct because this is the style of the piece

The men without weapons: We’re Americans. The men without weapons: We’re Americans.

The men with weapons: Well, what kind of Americans? The men with weapons: Well, what kind of Americans?