One of my favorite films

It’s called “Brest Fortress”. I saw watched it a year ago on during the “International Moscow Film Festival”. I was astonished about by this film. The film shows the heroic defense of Brest Fortress, which had taken upon the first stroke wave of German fascist invaders on June 22 1941. It was produced by the Television and Radio Organization of Russia and Belarus.

The film “Brest Fortress” was made like a good USSR film. The script was written by several people. There were many historians in 2 World War (do you mean "some of them were historians from World War II", or "some of them were historians who were experts in World War II"), because the film was based on real historical events. They learned studied USSR and German archives so as to show the truth for to the people. It was directed by Alexander Kott. It wasn't his first historical film. It starred famous Russian actors: Andrey Merzlikin, Pavel Derevyanko and Alexander Korshunov. It lasted for more than two hours. The film “Brest Fortress” was very complicated, because all war stories are complicated. The acting was brilliant.

The best thing about it was that it wasn't “Terminator” or another fantasy story, it is but our real history. Additionally, the worst thing also about it was that it was historically true, because and it was really terrifying to of watch it. The truth is that many young people don’t know their own history. This is a tragedy. Also, some people want to rewrite history.

I’d recommended it to anyone. If people all over the world watched films like this, the war would never come again.

Well-written, but you just have to note that there must be consistent usage of the same tenses throughout (all past tense, for example).

One of my favorite films [British English "favourite"]:

IS called “Brest Fortress”. I saw it a year ago AT the “International Moscow Film Festival”. I was astonished BY this film. The film shows the heroic defense [British English "defence"] of Brest Fortress, which WAS taken IN the first ATTACK of THE German fascist invaders on June THE 22ND 1941. It was produced by THE Television and Radio organization of Russia and Belarus. The film “Brest Fortress” was made like ALL good USSR  filmS. The script was written by several people. There were many historians in THE SECOND World War, WHOSE WORK  the film is based on - real historical events. They STUDIED USSR and German archives so as to UNCOVER the truth for THE VIEWERS . It was directed by Alexander Kott. It isn’t his first historical film. It stars famous Russian actors: Andrey Merzlikin, Pavel Derevyanko and Alexander Korshunov. It lastS more than two hours. The film “Brest Fortress” is very complicated, because all war stories are complicated. The acting is brilliant. The best thing about it IS THAT IT isn’t “Terminator” or another fantasy story, it is our real history. The worst thing also about it is THAT IT IS historicalLY  true, because it really terrified ALL THOSE WHO watchED  it. The truth is that many young people don’t know their own history. This is tragedy. Also some people want to rewrite history [and pretend things like the holocaust didn't happen].
I’d recommend it to anyone. If people all over the world watched filmS like this, THERE WOULD NEVER BE ANOTHER WAR.

Very good! Your mistakes are minor ones.