I want to compare the Hindi film adaptation Haider of Shakespeare’s Hamlet with the original play and write a research paper on this.

The political commentary on Kashmir’s situation is strong in the film. The fate of the government hired counter insurgents makes the heart of the film. Political aspirations of leaders, role of torture, of intelligence agencies are commented upon. The film and the play will make the primary texts.

What secondary sources should I use here? The characters, conflicts, aspirations etc have all been loaded with an excess of cultural meanings. How to go about reading them? Is there a cultural theorist I can look at for this? The structure of the film will also play a role. The authorial intent was tampered by the censor board. I want to comment on this as well.