So, the argument is rather well placed. At the same time though, I think it would have been even more compelling if there would have been some references made to studies conducted in this area such as psychological analysis or opinions from experts in the field of human interpretation of stimuli. P2: this paragraph is also a good contribution to the paper. It is a standard element in argumentation, that of showing counter arguments to the thesis. I think it is ok; my only suggestion would be to reference some sources for supporting the argument that that the assumption provided is based on speculation. Otherwise, the dismissal of the counter argument can as well be seen as speculation.

P3. The paragraph is well structured and points out several interesting facts. However, if one is not familiar with acronyms such as MPAA they would have to understand it from the context. I would suggest elaborating on the acronym. Also, there was a mentioning at one point in the paragraph that Psycho is a symbol of pop culture. I would add to this a reference because it may be that this is not a generally accepted truth and there are debates on this affirmation, which in...

I think it is well constructed and the references made to these films really support your argumentation. However, there are no clear examples of certified opinions that agree or support the idea that the contribution the film had for the cinema was that important. I would consider referencing film critics or reviews in order to increase the credibility of your arguments. Also, the length of the paragraph makes it a bit difficult to follow the line of the argumentation or the examples provided. Therefore, I would make this paragraph somewhat shorter and allow room for a concluding paragraph.
Grammar

P2S2: I would rephrase it to have more emphasis on the subject rather than the targeted audience. The sentence appears a bit twisted in structure.

P3S4: The names of the films "300" and "Django Unchained" I would put in inverted commas. There are other examples of films whose names should be put in inverted commas.

P3S7: comma instead of;

P4S14 "meat hook" instead of "meathook."