'Animal Farm" - Film vs. Novel

I did not find the film to be a completely satisfactory adaptation of the novel. This is because although the film portrayed the main points and themes of the book, there were some details that were different. I do not see why the movie changed some of the details. One example of this is that the film is told in a first person perspective of Jessie, while the
book is not("Animal Farm"). I was not really satisfied with the movie.

Other examples of differences between the book and the film are that in the film, Jessie and Mr. Pilkington played big roles. Also, Napoleon used the TV that was
found in the farm house to distract the animals. He also created his own propaganda movies ("Animal Farm"). Another difference was that in the film the humans attacked Animal farm twice, while in the book they attacked only once ("Animal Farm") (Orwell, 70).