Final answer:
The book 'To Kill a Mockingbird' and its movie adaptation differ in character representation, subplots, and details due to medium constraints. Key themes are present in both, but the storytelling methods vary.
Step-by-step explanation:
The book 'To Kill a Mockingbird' by Harper Lee and its movie adaptation have several differences. The film, due to time constraints and medium differences, omits some characters and subplots that are present in the book. For example, characters like Aunt Alexandra and Miss Maudie are given less screen time in the movie. Additionally, the film adaptations often alter scenes or dialogue for dramatic effect and to translate the story from a textual medium to a visual one.
The theme of racial injustice is central to both, although the nuances may be presented differently. In books, complex thoughts and motivations can be conveyed more thoroughly through the narrative, whereas in movies, this has to be shown via actors' performances and visual storytelling. The difference between the plot, which is the sequence of events, and the story, which includes all details and background information, is significant in understanding adaptations. The theme is consistent, but the way the story is told changes with the adaptation.
In conclusion, while both mediums convey Harper Lee's message, they do so through different means suited to their respective formats.