Pan's Labyrinth

Today I was supposed to rent many DVD's which Daniel recommend to me.
I thought I could pay with my rental DVD point card, but I didn't have enough points. 

We need to write this sentence in simple past tense.

Rental is a noun. For example: "I don't own this DVD, it is a rental."

I had just 100 yen (1 DVD = 100 yen) so I rented "Pan's Labyrinth" because my good friend told me, "please watch it, then let's talk about it."

I just finished watching the movie....  (You can use "the" in this case because your audience knows that you are talking about one specific movie [definite object])

I am speechless. I cannot say anything. Up until now, has anyone watched this movie?

This movie was on the Fantasy shelf of DVD rental shop. I do not want to believe that this story is FANTASY!!!

[We put things ON a shelf. We put things IN a box.]

Too sad.
Such a bad ending. [Saying "too bad" is a bit awkward. You should replace is with "such a" or use an adjective such as "terrible" or "horrible."

However, I can say that the reflection was amazing. It was beautiful.

I dont know how to explain this movie even though I want to. lol

Please let me know if you have seen this movie. :) 

Thanks for reading my note. :)

Have a nice day^^

keiko

You can express yourself in English quite well, but you are redundant with some vocabulary and grammar. You can use simple sentences to say a lot! Keep it simple and keep practicing!