And there's a lighthouse at athe top of a hill.

You will overlook acan see the beautiful ocean and the port town from there.

"Ocean" is fine to use, but I want to just note that, when English speakers say "ocean," they only mean 海洋 (like the Pacific Ocean or Atlantic Ocean). "Ocean" means a large body of open water. "Sea" is a more general term that people tend to use to talk about any body of water.

I didn't know that actualuntil recently,. I think it's because it wasn't really popular back then.

However, the other day, I watched the anime movie version movie, and it made me want to watch the original one.

In the very beginning of the movie, there's a scene where the child actors are running up the hill towards the lighthouse.

I was excited watching the scene because the town in the background was surely the port town.

Instead of "surely," you can also use the word "indeed."

The / ANearby Port Town Nearby

"A Nearby Port Town" is fine grammar. But using "a" makes it feel non-specific and "cold".

There's a small port town nearby to where I live.

Or:
Nearby to where I live, there's a small port town.

And there's a lighthouse at athe top of a hill.

You willIt overlook as the beautiful ocean and the port town (from thereup on the hill).

I didn't know that actualuntil recently, I think it's because it wasn't reallvery popular back then.

Using "back then" gives the impression that the film wasn't popular in the 1993 but is now popular.

例えば：

"I wasn't good looking back then"
→ But now I am good looking

"Things got pretty wild back then"
→ Things are calmer now relative to "back then"

"Life was good back then"
→ Life is not as good right now

All of these sentences suggest that things were one way but are now a different way currently.

However, the other day, I watched the animeated version of the movie, and it made me want to watch the original one.

For a general person in the West, who may not be familiar with anime, it's probably better to use the word "animated".

For example, if I told my parents that I watched the "anime version", they would have no idea what I was talking about.

Even for younger people, the word "anime" may make people think specifically about 少年漫画 type, because that's what's most famous over here (DragonBall, Attack on Titan, etc.)

It was 1,500 Japanese yen.

"It was" is fine.

You could say "it cost" to be a bit more interesting.

InAt the very beginning of the movie, there's a scene where the child actors are running up the hill towards the lighthouse.

I was excited watching the scene because the town in the background was sureclearly the port town.

You will overlook aFrom there, you have a view of the beautiful ocean and the port town from there.

Future tense isn't right here, and I'd move "from there" to the beginning so it clarifies what view we're talking about

It wasfor 1,500 Japanese yen.

This would easily combine with the previous sentence

In the very beginning of the movie, there's a scene where the child actors are running up the hill towards the lighthouse.

Assuming "child actors" is intended to be a plural subject, you need an "are" before the gerund

I was excitenjoyed watching the scene because I recognized the town in the background was surely the port town.

I think you want to emphasize what *you* recognized about the town (by including "I" as a subject), rather than stating it as a standalone fact

And there's a lighthouse at a topon the top (or: at the top; on top) of a hill.

You will overlook aThere's an overlooking view of the beautiful ocean and the port town from there.

However, the other day, I watched the anime versionadaptation of the movie, and it made me want to watch the original one.

In the very beginning of the movie, there's a scene where the child actors are running up the hill towards the lighthouse.

I was excited watching the scene because I was certain that the town in the background was surely the port town.

The /re’s A Port Town Nearby

And there's a lighthouse at aon top of a hill.

However, the other day, I watched the anime version movie, and it made me want to watch the original one.

In the very beginning of the movie, there's a scene where the child actor was running up the hill towards the lighthouse.