Please correct!

I often watch many movies or foreign drama's when I have free time.

I love foreign movies especially and my favorites are twilight movies and wild speed movies.

Many foreign movies are exciting and the content of them is deep ,何よりaction scene is cool to.

I usually watch movies while eating many snacks and lying on the floor at home.

I like watching in the movie theater best but I want a room theater in my house in case the span of the film has already finished or I don't have free time to watch the whole thing.

I have experienced this when watching a movie and then all of the sudden it's morning because I was absorbed in watching the movie so much.

I am excited when I can see all kinds of movies during my free time.

I want to see it first but I have not been able to because of I've been busy.

I love foreign movie especially and my favorites are the Twilight and Wild Speed series.

When you have more than one of the same movie (like Star Wars or Harry Potter) you call them a "series." The Harry Potter series, the Star Wars series, the Twilight series.

Some people use "saga" instead of series, that's okay too!

Many foreign movies are exciting and the content of them is deep , most of all the action scenes are cool.

The best translation of 何より is "most of all" I think!

English plurals are difficult for Japanese speakers, since it's your first time learning them! A good rule here is that if you're not talking about one scene in one movie, but are talking about any scene in all of your favorite movies, then use a plural.

"Action scenes are the best scenes." (scenes)
"I like eating snacks." (snacks)
"Movies are so much fun to watch!" (movies)

And remember, if you have a plural like "movies" to use "are" and not "is"!

I like the best to watch it on a movie theater the best, but I want a home theater in my house in case the release of film has already finished or I didn't have free time to watch it.

A nice movie theater inside your house is called a "home theater."

The amount of time a movie is playing in public movie theaters is called that movie's "release." Or you can just say "when it's in theaters."

I want to watch movies soon because I haven't been able to because of busyness.

忙しさ means "busyness." In English, we like to add "ness" onto the end of descriptions to make them things. The is pretty much how さ works in Japanese.

colorful -- colorfulness
playful -- playfulness
cute -- cuteness
tasty -- tastiness
などなど

わかりますか？