Going to the cinema

Of course, like as most of us, I like to watch movies. Usually, I do it at home in the a comfort of my favorite armchair feeling snug and cozy. However, I really like going to the [theater/cinema] and watching movies on the big screen in the presence of other people. I try to find time in the mornings on the weekends when movie theaters are not crowded. On those days, I am able to sit in at a desirable seat in the middle at the very back of the room and have the best view. If I think about movie genres, comedy, drama[,] and science-fiction are the ones I like most. I absolutely refuse to watch horror movies or [really violent movies/movies that are really violent]. Other than that, I am fine with all varieties of [movie/the cinema] genres.

Great job. We would say "like most of us", not "as most of us". "Usually" is an initial conjunction. Remember that a conjunction is a word or a phrase joining other words and phrases and initial means it comes at the beginning of the sentence, Initial conjunctions require commas after them. You want to say "in the comfort of my favorite armchair", not "in a comfort of my favorite armchair". Remember that the article "a" is for referring to things generally and the definite article "the" is for referring to things specifically and "comfort of my favorite armchair" is quite specific. In the USA, at least, we would likely say "I like going to the theater" or "I like going to the movie theater". In the UK and elsewhere, I think they are more likely to call it the "cinema" or if they write "theatre", they wrrite it "-re" at the end and not "-er" at the end like we do in the USA. You could even say "I like going to the movies", but if you did, then you should continue on saying "and watching them on the big screen". If you use the other options, it would be better to stick with "watching movies on the big screen". I think "in the presence of other people" because you are not technically "with" other people unless you go to the theater with them. We can all be alone in a crowd and so I do not agree with Joia livi above as "with" does denote that you went there with somebody, and from what I can tell, you are going alone and the other people are just there, but not "with" you. You want "mornings" to be plural because since you say "weekends", there are more than one weekend, so there has to be more than one morning. And you want to put "the" in front of "weekends" because weekends are a specific time of the week and so we say "on the weekends". "On those days" is an initial prepositional phrase. Remember that a preposition links nouns, pronouns and phrases to other words in the sentence and while doing so, they describe a relationship between these other words in the sentence. A prepositional phrase begins with a preposition (On) and ends in a noun (those days). When the prepositional phrase comes at the beginning of a sentence, it requires a comma after it. You sit "in" a seat, not "at" it. Some English grammar style guides say when making a list of things, to put a comma before the final "and" that precedes the last thing on the list. However, others do disagree with this. So I offer you the option of putting a comma after "drama" and before "and science fiction", but it is, like I say, only an option which some prefer and is never wrong to do. It is all right to say "I absolutely refuse to watch horror movies or movies that are really violent", but "I absolutely refuse to watch horror movies or really violent movies" would be another option. I think you want to say "I am fine with all varieties of movie genres". You could also say "cinema genres", which I think would be less American English and more British English and English spoken elsewhere, but "genres" definitely needs to be plural because "varieties" is plural and you definitely mean more than one genre.