Final answer:
In film adaptations, changes to themes and characters generally have the greatest impact on ideologies from the source material, as they are central to conveying messages and worldview. Artistic choices in production, such as casting and settings, can also influence audience perception, along with technical aspects unique to filmmaking like CGI.
Step-by-step explanation:
When adapting a work to film, changes to the themes and characters often have the greatest impact on the ideologies presented in the source material. This is because the themes and characters are central to conveying the work's underlying messages and worldview.
For instance, altering a character's background or personality can shift the narrative dramatically, which may either highlight or suppress certain ideologies. Similarly, altering themes can change the entire outlook of a story, flipping its ideological stance. Additionally, the artistic choices in production—like casting, setting, and visual effects—can greatly influence how the audiences perceive these ideologies.
Film adaptations highlight different aspects of the original text due to the nature of the medium, involving careful choice in editing and direction to align with the vision of the filmmaker, who often must consider budget constraints and technical opportunities unique to filmmaking such as CGI.
Essentially, the conversion from text to screen involves making diverse decisions that can affect the way ideologies are communicated to the audience. This is seen in the choices Hollywood makes in response to societal preferences and values, as well as in the portrayal or omission of diversity within influential shows and movies.