I don't think anyone watches City Hunter, a movie made in France, whose story wais based on a famous Japanese comic book.

その映画は現在に存在しているので、現在形を使った方が正しいです。

I didn't expect it but I, as a City Hunter's fan, was really glad to see the director, Philippe Lacheau, madke this movie true to the original story.

CThe characters, setting, story development, and even a small scene were all faithful to the original content/story. ¶

I was happy that French people made this film because I thought a foolish gag in the movie was unique to Japan and people infrom other countries would never understand it. ¶

fromの方が自然だと思います。でも、この文章は少し不自然です。[because]を使ったですけど後ろの部分がよく分かりません（どんなgagですか？）

The actors and the actresses changdied their hair colors to dark like Japanese that I thinkpeople, which I thought was a bit strange but still sexy.

I don't think anyone has watchesd City Hunter, a movie made in France, and whose story was based on a famous Japanese comic book.

I didn't expect it but I, as a City Hunter's fan, was really glad to see the director, Philippe Lacheau, madke this movie true to the original.

I was happy that French people made this film because I thought a foolishsilly gag in the movie that was unique to Japan and people infrom other countries would never understand it. ¶

The actors and the actresses changdyed their hair colors to be dark like Japanese that I thinkpeople, which I thought was a bit strange but still sexy.

I don't think anyone watches has seen "City Hunter," a movie made in France, whose story was and based on a famous Japanese comic book.

I didn't expect it, but I, as a "City Hunter's" fan, I was really glad to see that the director, Philippe Lacheau, made this movie true to the original.

CThe characters, setting, story development, and even athe smallest of scenes were all faithful to the original. ¶

I was happy that French people made this film because I thought a foolish gag in the movie that was unique to Japan and people in other countries would never understand it. ¶
would not be comprehensible to people in other countries.

The actors and the actresses changed their hair colors to be dark like that of Japanese thatpeople, and I think it's a bit strange but sexy.

I don't think manyon people have watchesd City Hunter, a movie made in France, and whose story was based on a famous Japanese comic book.

I didn't expect it but I, as a City Hunter's fan, was really glad to see the director, Philippe Lacheau, made this movie true to the original.

Characters, setting, story development and even a smallone minor scene were all faithful to the original. ¶

Small can describe the length of the scene, but minor describes the importance. Referring to the scene this way sounds slightly more natural here.

I was happy that French people made this film because I thought a foolishsilly gag in the movie was unique to Japan and people in other countries would never understand it. ¶

Foolish has a negative feeling to it. If you say someone is foolish, or has a foolish idea and so on, you are (lightly) insulting them. Also, "foolish" is a bit outdated and not used much anymore except by people like comic book supervillains

The actors and the actresses changed their hair colors to dark like Japanese thatve, which I think is a bit strange, but sexy.