When reading Corrigan’s text, his feelings of how opinion and evaluation influence how we write about film are clear and it is easy to grasp the concept that he is explaining. Everyone has their likes and dislikes when it comes to film, and their opinions on film are usually at the forefront of any writing or conversation, but evaluation of the film is also very important for one to consider when writing about film; otherwise you just sound like a movie reviewer.
One example that Corrigan brings up in his text is the way that people look at and discuss literary adaptations. Some people want nothing to do with literary adaptations unless they are completely true to the literary work and one example of film that has been brought under scrutiny recently is Beowulf (2007). Most people found the film to be quite bothersome because it is only loosely based on the literary work that it is based on with the film-makers taking artistic liberties and adding things and changing characters and so on. I simply look at the film for what it is; a literary adaptation that is trying to draw in a larger crowd than just those who have read the work.
It is alright to express your opinion about any work of film, but if you are going to write about it then you must also evaluate the film without allowing your opinions to control what you are attempting to communicate in your writing.