In film scriptwriting, writing characters and dialogue to subtly convey an extreme political ideology requires great care to avoid direct propaganda or causing offence to the audience. Here are some tips to convey a particular ideology without being obvious: 1. **Multi-dimensional characters**: Create complex, deep characters that are more than just spokespersons for an ideology. Audiences will relate to characters with depth and are more receptive to the ideas they convey. 2. **Story First**: Make sure the ideology is naturally developed through the story, rather than inserted into the story. Audiences are more likely to accept ideas that are closely related to the character's development. 3. **Subtle dialogue**: Let the characters express a certain point of view in natural dialogue, rather than through preaching. The dialogue should reflect the character's personality and background, while also conveying the ideology implicitly. 4. **Emotional appeal**: Use the character's emotional dilemma, victory or failure to resonate with the audience. When in an emotional state, the audience is more likely to identify with the underlying ideas. 5. **Metaphors and symbols**: Use metaphors and symbols to convey ideology through the storyline or visual elements. This implicit expression allows the audience to receive the message subconsciously. 6. **Villain character creation**: portray villains in a way that distorts or simplifies a certain opposing viewpoint, so that the audience is more likely to tend to the ideology that the film wants to convey in comparison. 7. **Gradual establishment of ideology**: gradually establish ideology through the advancement of the plot, rather than imposing it on the audience all at once. This allows the audience enough time to internalize these ideas. 8. **Diverse perspectives**: provide multiple perspectives, appearing fair and neutral on the surface, but using details and emotional guidance to gradually make the audience tend to a specific position. It should be noted that the use of the above techniques requires sensitivity to the diversity of the audience and avoid the dissemination of inflammatory and misleading information. It is important to promote the audience's in-depth thinking on complex issues on the basis of entertainment and art rather than direct indoctrination.