Today I want to retell to you the plot of thea film.

NamThe name of the film is "Dumb Money"."

If you didn't watch this film, I recommend that you skip my journal.

First of all, I caouldn't watch this film at the movie theater, because in my town this movie didn't show at local movie theaters.

What you know about Wall Street.

What are you trying to say here?

In that place, so much money circulates.

I can't imagine how much, but the main character could.

That film tells the story about a regular gauy who believes him principal.

What do you mean by "believes him principal?" Does the character believe he's really important?

He bet contra tos against Wall Street.

He wanted to punish big bad gauys with big money and proved as that regular people can punish those bad gauys.

He organized alarums and excursions on internet or rather on Reddit.

Reddit is the biggest forum in the Wworld.

I think you know what ist its.

In the end, that regualar gauy could prove that.

He could earn some 10stens of millions of dollars.

I was on hims side and I was happy when he won.

I don't know what that gauy dois doing right now, but I predictguess he is a happy man.

NamThe film name is "Dumb Money".

Could also say "The film is called Dumb Money".

If you didn't watchhaven't seen this film I recommend you skip my journal.

First of all, I can't watch this film at my local movie theaters, because in my town this movie didn't show at local movie theatersey aren't showing it.

Just avoiding some repetition here.

What you know about Wall Street.

Not sure what this sentence is trying to communicate

In that place sSo much money circulates there.

Just another stylistic correction.

I can't imagine how much, but the main character could.

That film tells the story about regular gauy who believes him principal.

He bet contra tos against Wall Street.

He wanteds to punish big bad gauys with big money and proved as that regular people can punish those bad gaysem.

Try to keep the same tense when telling a story, The previous sentence uses present tense, so you should here as well.

He organized alarums and excursions on internet or rather ona website called Reddit.

Since reddit is on the internet I wouldn't use "rather on" here.

Reddit is the biggest forum in the Wworld.

In the end that regualar gauy could prove that.

This is a sentence fragment, you should combine it with the following one.

I was on hims side and I was happy when he won.

I don't know what that gauy do rightes now, but I predicbet he is happy man.

Today I want to retell you about the plot of the film "Dumb Money".

"Retell" - have you told us already? If not, just use "tell". I've combined the film name into this sentence so it flows better.

NamThe film's name is "Dumb Money".

"film" needs a definitive article before it. Also need to use "film's" as you are providing this film's name in the same sentence.

If you didhaven't watched this film I recommend you skip my journal entry.

use haven't instead of didn't here. Also use watched

First of all, I caouldn't watch this film at the movie theater, because in my town this movie didwasn't showing at local movie theaters.

fyi theater is the american english spelling in case you didn't know

What do you know about Wall Street.?

In that place so much money circulates.

The above isn't wrong but sounds a bit off. Could say instead "It is a place where a lot of money circulates"

I can't imagine how much, but the main character in "Dumb Money" could.

have added for extra info, not grammar

That film tells the story about a regular gauy who believes in hims principales.

regular guy! Principal is a head teacher

He bet contra toagainst Wall Street.

"...and who bet against Wall Street." The above makes sense, but would flow better if you modified and added to the previous sentence.

He wanted to punish big bad gays with big money and proved asrove regular people can punish those big bad gauys with the big money.

Flows a lot better if you rearrange the sentence.

He organized alarums and excursions on the internet or rather on Reddit.

not sure what you mean by "alarums", 'alarms'?

In the end that regualar gay could prove thatuy proved that he could earn tens of millions of dollars.

He could earn some 10s millions dollars.

I was on hims side and I was happy when he won.

I heard about this situation, but I didn't find out.

This sentence doesn't make sense without further context, don't think think it's needed.

I don't know what that gauy does right now, but I predict he is happy man.