My favorite tvTV show is Breaking Bad and although action is not my cup of tea, because they're generally bland, this one is, for me, one of the best things I've ever seen!

The main story is about a chemistry teacher, Walter White, thatwho discovers that he has cancer and that its treatment has an astronomical price.

In order to provide a good futuresecure financial security for his family and to postpone his death, he starts to cook meth with his ancientone of his old students, Jesse Pinkman.

“Secure” is a better choice of word, because you are implying he intends to do this in the future.

The situations that he and his partner get through seems to me impossible to solve or to crack, but they always know a way to come out winning or at least alive.

Since you used “situations”, it needs to be paired with “seem”. If you are talking about one “situation”, then “seems” would be correct.

I can't hdefinitelpy having only one best-lovede more than one favorite characters, b. But if I can select only two of them, thatey would be Jesse and Gustavo Fring.

About the character actedportrayed by Giancarlo Esposito, I love how the actor played the role so skillfully, he absorbed Fring's traits and I'd definitely watch another one of his movie or show cast by him.

“Cast by him” makes it look as though he would be the director, and not the actor. Actors get cast, they don’t cast others.

My favorite tv show is Breaking Bad and although action is nomovies aren't my cup of tea, because they're generally bland, this one is, for me, one of the best things I've ever seen!

If you want to use 'they're' then you need to use the plural - 'action movies'

The main story is about a chemistry teacher, Walter White, that discovers he has cancer and itsthe treatment has an astronomical price.

Very good! Just a small change to make it more natural.

In order to provide a good future for his family and to postproloneg his deathlife, he starts to cook meth with his ancientformer student, Jesse Pinkman.

Instead of 'postpone his death', use 'prolong his life'. It is more natural!

The reason why it became my favorite show is the genius way of Walter's thinking!

The situations that he and his partner get through seems to me impossible to solve or to crack, but they always know a way to come out winning or at least alive.

I can't help having only one best-loved characterschoose only one character I like the most, but if I canhad to select only two of them, that would be Jesse and Gustavo Fring.

About the character actedd by Giancarlo Esposito, I love how the actor played the role so skillfully, he absorbed Fring's traits and I'd definitely watch another movie or show that cast bys him.